56135900 has 18 divisors (see below), whose sum is σ = 121815120. Its totient is φ = 22454320.

The previous prime is 56135897. The next prime is 56135903. The reversal of 56135900 is 953165.

It is an interprime number because it is at equal distance from previous prime (56135897) and next prime (56135903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56135903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280580 + ... + 280779.

Almost surely, 2^56135900 is an apocalyptic number.

56135900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56135900 is an abundant number, since it is smaller than the sum of its proper divisors (65679220).

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

56135900 is a wasteful number, since it uses less digits than its factorization.

56135900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561373 (or 561366 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 56135900 is about 7492.3894719909. The cubic root of 56135900 is about 382.8954714780.

The spelling of 56135900 in words is "fifty-six million, one hundred thirty-five thousand, nine hundred".