56205136 has 20 divisors (see below), whose sum is σ = 117274612. Its totient is φ = 25940736.

The previous prime is 56205131. The next prime is 56205151. The reversal of 56205136 is 63150265.

It can be written as a sum of positive squares in 2 ways, for example, as 12645136 + 43560000 = 3556^2 + 6600^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56205131) 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, 134901 + ... + 135316.

Almost surely, 2^56205136 is an apocalyptic number.

It is an amenable number.

56205136 is an abundant number, since it is smaller than the sum of its proper divisors (61069476).

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

56205136 is a wasteful number, since it uses less digits than its factorization.

56205136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270238 (or 270232 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 56205136 is about 7497.0084700499. The cubic root of 56205136 is about 383.0528233060.

The spelling of 56205136 in words is "fifty-six million, two hundred five thousand, one hundred thirty-six".