52257507 has 32 divisors (see below), whose sum is σ = 77371200. Its totient is φ = 31223808.

The previous prime is 52257479. The next prime is 52257509. The reversal of 52257507 is 70575225.

It is not a de Polignac number, because 52257507 - 2⁷ = 52257379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52257509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131433 + ... + 131829.

It is an arithmetic number, because the mean of its divisors is an integer number (2417850).

Almost surely, 2^52257507 is an apocalyptic number.

52257507 is a deficient number, since it is larger than the sum of its proper divisors (25113693).

52257507 is a wasteful number, since it uses less digits than its factorization.

52257507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535.

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 52257507 is about 7228.9353987984. The cubic root of 52257507 is about 373.8662218022.

The spelling of 52257507 in words is "fifty-two million, two hundred fifty-seven thousand, five hundred seven".