56929509 has 36 divisors (see below), whose sum is σ = 101783136. Its totient is φ = 30023136.

The previous prime is 56929493. The next prime is 56929511. The reversal of 56929509 is 90592965.

56929509 is a `hidden beast` number, since 56 + 92 + 9 + 509 = 666.

It is not a de Polignac number, because 56929509 - 2⁴ = 56929493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56929519) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7974 + ... + 13320.

Almost surely, 2^56929509 is an apocalyptic number.

It is an amenable number.

56929509 is a deficient number, since it is larger than the sum of its proper divisors (44853627).

56929509 is a wasteful number, since it uses less digits than its factorization.

56929509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5386 (or 5370 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 56929509 is about 7545.1646105304. The cubic root of 56929509 is about 384.6914016649.

The spelling of 56929509 in words is "fifty-six million, nine hundred twenty-nine thousand, five hundred nine".