52656040 has 16 divisors (see below), whose sum is σ = 118476180. Its totient is φ = 21062400.

The previous prime is 52656029. The next prime is 52656061. The reversal of 52656040 is 4065625.

It can be written as a sum of positive squares in 2 ways, for example, as 52099524 + 556516 = 7218^2 + 746^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658161 + ... + 658240.

Almost surely, 2^52656040 is an apocalyptic number.

It is an amenable number.

52656040 is an abundant number, since it is smaller than the sum of its proper divisors (65820140).

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

52656040 is a wasteful number, since it uses less digits than its factorization.

52656040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316412 (or 1316408 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 52656040 is about 7256.4481669754. The cubic root of 52656040 is about 374.8142250193.

The spelling of 52656040 in words is "fifty-two million, six hundred fifty-six thousand, forty".