52513025 has 24 divisors (see below), whose sum is σ = 68400384. Its totient is φ = 39916800.

The previous prime is 52513007. The next prime is 52513033. The reversal of 52513025 is 52031525.

It is not a de Polignac number, because 52513025 - 2⁶ = 52512961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155657 + ... + 155993.

It is an arithmetic number, because the mean of its divisors is an integer number (2850016).

Almost surely, 2^52513025 is an apocalyptic number.

It is an amenable number.

52513025 is a deficient number, since it is larger than the sum of its proper divisors (15887359).

52513025 is a wasteful number, since it uses less digits than its factorization.

52513025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 52513025 is about 7246.5871277450. The cubic root of 52513025 is about 374.4745826934.

Subtracting from 52513025 its product of nonzero digits (1500), we obtain a palindrome (52511525).

The spelling of 52513025 in words is "fifty-two million, five hundred thirteen thousand, twenty-five".