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52664089 = 232289743
BaseRepresentation
bin1100100011100…
…1011100011001
310200002121112211
43020321130121
5101440222324
65120435121
71206431422
oct310713431
9120077484
1052664089
1127800345
1215778aa1
13ababbaa
146dcc649
154954294
hex3239719

52664089 has 4 divisors (see below), whose sum is σ = 54953856. Its totient is φ = 50374324.

The previous prime is 52664083. The next prime is 52664099. The reversal of 52664089 is 98046625.

It is a happy number.

52664089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52664089 - 221 = 50566937 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52664083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144849 + ... + 1144894.

It is an arithmetic number, because the mean of its divisors is an integer number (13738464).

Almost surely, 252664089 is an apocalyptic number.

It is an amenable number.

52664089 is a deficient number, since it is larger than the sum of its proper divisors (2289767).

52664089 is a wasteful number, since it uses less digits than its factorization.

52664089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289766.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 52664089 is about 7257.0027559592. The cubic root of 52664089 is about 374.8333220750.

Subtracting from 52664089 its sum of digits (40), we obtain a square (52664049 = 72572).

The spelling of 52664089 in words is "fifty-two million, six hundred sixty-four thousand, eighty-nine".

Divisors: 1 23 2289743 52664089