56509134 has 32 divisors (see below), whose sum is σ = 125922816. Its totient is φ = 16758720.

The previous prime is 56509051. The next prime is 56509147. The reversal of 56509134 is 43190565.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 56509095 and 56509104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6007 + ... + 12210.

It is an arithmetic number, because the mean of its divisors is an integer number (3935088).

Almost surely, 2^56509134 is an apocalyptic number.

56509134 is an abundant number, since it is smaller than the sum of its proper divisors (69413682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56509134 is a wasteful number, since it uses less digits than its factorization.

56509134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18280.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 56509134 is about 7517.2557492745. The cubic root of 56509134 is about 383.7421907750.

Adding to 56509134 its reverse (43190565), we get a palindrome (99699699).

The spelling of 56509134 in words is "fifty-six million, five hundred nine thousand, one hundred thirty-four".