52121525 has 24 divisors (see below), whose sum is σ = 66558240. Its totient is φ = 40472640.

The previous prime is 52121521. The next prime is 52121527. The reversal of 52121525 is 52512125.

It is not a de Polignac number, because 52121525 - 2² = 52121521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52121525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52121521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184034 + ... + 184316.

It is an arithmetic number, because the mean of its divisors is an integer number (2773260).

Almost surely, 2^52121525 is an apocalyptic number.

It is an amenable number.

52121525 is a deficient number, since it is larger than the sum of its proper divisors (14436715).

52121525 is a wasteful number, since it uses less digits than its factorization.

52121525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 480 counting only the distinct ones).

The product of its digits is 1000, while the sum is 23.

The square root of 52121525 is about 7219.5238762677. The cubic root of 52121525 is about 373.5416544793.

The spelling of 52121525 in words is "fifty-two million, one hundred twenty-one thousand, five hundred twenty-five".