53572257 has 12 divisors (see below), whose sum is σ = 78134784. Its totient is φ = 35367480.

The previous prime is 53572249. The next prime is 53572261. The reversal of 53572257 is 75227535.

It is a happy number.

53572257 is a `hidden beast` number, since 535 + 72 + 2 + 57 = 666.

It is not a de Polignac number, because 53572257 - 2³ = 53572249 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (53572217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27969 + ... + 29822.

It is an arithmetic number, because the mean of its divisors is an integer number (6511232).

Almost surely, 2^53572257 is an apocalyptic number.

It is an amenable number.

53572257 is a deficient number, since it is larger than the sum of its proper divisors (24562527).

53572257 is a wasteful number, since it uses less digits than its factorization.

53572257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57900 (or 57897 counting only the distinct ones).

The product of its digits is 73500, while the sum is 36.

The square root of 53572257 is about 7319.3071393404. The cubic root of 53572257 is about 376.9756637284.

The spelling of 53572257 in words is "fifty-three million, five hundred seventy-two thousand, two hundred fifty-seven".