52051257 has 6 divisors (see below), whose sum is σ = 75185162. Its totient is φ = 34700832.

The previous prime is 52051249. The next prime is 52051261. The reversal of 52051257 is 75215025.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43877376 + 8173881 = 6624^2 + 2859^2 .

It is not a de Polignac number, because 52051257 - 2³ = 52051249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52051257.

It is not an unprimeable number, because it can be changed into a prime (52051217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2891728 + ... + 2891745.

Almost surely, 2^52051257 is an apocalyptic number.

It is an amenable number.

52051257 is a deficient number, since it is larger than the sum of its proper divisors (23133905).

52051257 is a wasteful number, since it uses less digits than its factorization.

52051257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5783479 (or 5783476 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 52051257 is about 7214.6557090411. The cubic root of 52051257 is about 373.3737147186.

The spelling of 52051257 in words is "fifty-two million, fifty-one thousand, two hundred fifty-seven".