56539361 has 4 divisors (see below), whose sum is σ = 56555712. Its totient is φ = 56523012.

The previous prime is 56539339. The next prime is 56539387. The reversal of 56539361 is 16393565.

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 a cyclic number.

It is not a de Polignac number, because 56539361 - 2¹⁰ = 56538337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56533361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725 + ... + 10658.

It is an arithmetic number, because the mean of its divisors is an integer number (14138928).

Almost surely, 2^56539361 is an apocalyptic number.

It is an amenable number.

56539361 is a deficient number, since it is larger than the sum of its proper divisors (16351).

56539361 is a wasteful number, since it uses less digits than its factorization.

56539361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16350.

The product of its digits is 72900, while the sum is 38.

The square root of 56539361 is about 7519.2659881135. The cubic root of 56539361 is about 383.8106004096.

The spelling of 56539361 in words is "fifty-six million, five hundred thirty-nine thousand, three hundred sixty-one".