52400655 has 32 divisors (see below), whose sum is σ = 93899520. Its totient is φ = 27724320.

The previous prime is 52400611. The next prime is 52400683. The reversal of 52400655 is 55600425.

52400655 is a `hidden beast` number, since 5 + 2 + 4 + 0 + 0 + 655 = 666.

It is not a de Polignac number, because 52400655 - 2⁶ = 52400591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16204 + ... + 19166.

It is an arithmetic number, because the mean of its divisors is an integer number (2934360).

Almost surely, 2^52400655 is an apocalyptic number.

52400655 is a deficient number, since it is larger than the sum of its proper divisors (41498865).

52400655 is a wasteful number, since it uses less digits than its factorization.

52400655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108 (or 3102 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 52400655 is about 7238.8296706028. The cubic root of 52400655 is about 374.2072854572.

The spelling of 52400655 in words is "fifty-two million, four hundred thousand, six hundred fifty-five".