52031257 has 4 divisors (see below), whose sum is σ = 52058320. Its totient is φ = 52004196.

The previous prime is 52031227. The next prime is 52031279. The reversal of 52031257 is 75213025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52031257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52031207) 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, 10407 + ... + 14572.

It is an arithmetic number, because the mean of its divisors is an integer number (13014580).

Almost surely, 2^52031257 is an apocalyptic number.

It is an amenable number.

52031257 is a deficient number, since it is larger than the sum of its proper divisors (27063).

52031257 is a wasteful number, since it uses less digits than its factorization.

52031257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27062.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 52031257 is about 7213.2695083436. The cubic root of 52031257 is about 373.3258873054.

The spelling of 52031257 in words is "fifty-two million, thirty-one thousand, two hundred fifty-seven".