52525521 has 12 divisors (see below), whose sum is σ = 77003472. Its totient is φ = 34493976.

The previous prime is 52525493. The next prime is 52525541. The reversal of 52525521 is 12552525.

52525521 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 52525521 - 2¹⁴ = 52509137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52525541) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 42951 + ... + 44156.

It is an arithmetic number, because the mean of its divisors is an integer number (6416956).

Almost surely, 2^52525521 is an apocalyptic number.

It is an amenable number.

52525521 is a deficient number, since it is larger than the sum of its proper divisors (24477951).

52525521 is a wasteful number, since it uses less digits than its factorization.

52525521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87180 (or 87177 counting only the distinct ones).

The product of its digits is 5000, while the sum is 27.

The square root of 52525521 is about 7247.4492754348. The cubic root of 52525521 is about 374.5042836629.

The spelling of 52525521 in words is "fifty-two million, five hundred twenty-five thousand, five hundred twenty-one".