55987025 has 12 divisors (see below), whose sum is σ = 69888384. Its totient is φ = 44490000.

The previous prime is 55987021. The next prime is 55987039. The reversal of 55987025 is 52078955.

55987025 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 55987025 - 2² = 55987021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55987021) 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, 3641 + ... + 11190.

It is an arithmetic number, because the mean of its divisors is an integer number (5824032).

Almost surely, 2^55987025 is an apocalyptic number.

It is an amenable number.

55987025 is a deficient number, since it is larger than the sum of its proper divisors (13901359).

55987025 is a wasteful number, since it uses less digits than its factorization.

55987025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14992 (or 14987 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 41.

The square root of 55987025 is about 7482.4477946725. The cubic root of 55987025 is about 382.5566863173.

The spelling of 55987025 in words is "fifty-five million, nine hundred eighty-seven thousand, twenty-five".