52521415 has 24 divisors (see below), whose sum is σ = 70511760. Its totient is φ = 37444608.

The previous prime is 52521373. The next prime is 52521421. The reversal of 52521415 is 51412525.

52521415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52521415 - 2⁹ = 52520903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52521415.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26499 + ... + 28411.

It is an arithmetic number, because the mean of its divisors is an integer number (2937990).

Almost surely, 2^52521415 is an apocalyptic number.

52521415 is a deficient number, since it is larger than the sum of its proper divisors (17990345).

52521415 is a wasteful number, since it uses less digits than its factorization.

52521415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1954 counting only the distinct ones).

The product of its digits is 2000, while the sum is 25.

The square root of 52521415 is about 7247.1659978229. The cubic root of 52521415 is about 374.4945248852.

The spelling of 52521415 in words is "fifty-two million, five hundred twenty-one thousand, four hundred fifteen".