55985025 has 24 divisors (see below), whose sum is σ = 92851200. Its totient is φ = 29765440.

The previous prime is 55984997. The next prime is 55985057. The reversal of 55985025 is 52058955.

It is not a de Polignac number, because 55985025 - 2⁷ = 55984897 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27751 + ... + 29699.

It is an arithmetic number, because the mean of its divisors is an integer number (3868800).

Almost surely, 2^55985025 is an apocalyptic number.

It is an amenable number.

55985025 is a deficient number, since it is larger than the sum of its proper divisors (36866175).

55985025 is a wasteful number, since it uses less digits than its factorization.

55985025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345 (or 2340 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 39.

The square root of 55985025 is about 7482.3141473745. The cubic root of 55985025 is about 382.5521309613.

The spelling of 55985025 in words is "fifty-five million, nine hundred eighty-five thousand, twenty-five".