52207489 has 4 divisors (see below), whose sum is σ = 52794180. Its totient is φ = 51620800.

The previous prime is 52207487. The next prime is 52207517. The reversal of 52207489 is 98470225.

52207489 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.

It can be written as a sum of positive squares in 2 ways, for example, as 26956864 + 25250625 = 5192^2 + 5025^2 .

It is a cyclic number.

It is not a de Polignac number, because 52207489 - 2¹ = 52207487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52207487) 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, 293212 + ... + 293389.

It is an arithmetic number, because the mean of its divisors is an integer number (13198545).

Almost surely, 2^52207489 is an apocalyptic number.

It is an amenable number.

52207489 is a deficient number, since it is larger than the sum of its proper divisors (586691).

52207489 is an equidigital number, since it uses as much as digits as its factorization.

52207489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586690.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 52207489 is about 7225.4750016867. The cubic root of 52207489 is about 373.7469023580.

The spelling of 52207489 in words is "fifty-two million, two hundred seven thousand, four hundred eighty-nine".