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53224405 = 513818837
BaseRepresentation
bin1100101100001…
…0001111010101
310201011002011021
43023002033111
5102111140110
65140441141
71214254123
oct313021725
9121132137
1053224405
1128053313
12159a91b1
13b046c40
1470d6913
154a152da
hex32c23d5

53224405 has 8 divisors (see below), whose sum is σ = 68782392. Its totient is φ = 39304128.

The previous prime is 53224393. The next prime is 53224417. The reversal of 53224405 is 50442235.

53224405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53224393) and next prime (53224417).

It can be written as a sum of positive squares in 4 ways, for example, as 1052676 + 52171729 = 1026^2 + 7223^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53224405 - 211 = 53222357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53224405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 409354 + ... + 409483.

It is an arithmetic number, because the mean of its divisors is an integer number (8597799).

Almost surely, 253224405 is an apocalyptic number.

It is an amenable number.

53224405 is a deficient number, since it is larger than the sum of its proper divisors (15557987).

53224405 is a wasteful number, since it uses less digits than its factorization.

53224405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818855.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 53224405 is about 7295.5058083727. The cubic root of 53224405 is about 376.1579731737.

The spelling of 53224405 in words is "fifty-three million, two hundred twenty-four thousand, four hundred five".

Divisors: 1 5 13 65 818837 4094185 10644881 53224405