55555825 has 24 divisors (see below), whose sum is σ = 74648000. Its totient is φ = 40772160.

The previous prime is 55555817. The next prime is 55555849. The reversal of 55555825 is 52855555.

It is not a de Polignac number, because 55555825 - 2³ = 55555817 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64246 + ... + 65104.

Almost surely, 2^55555825 is an apocalyptic number.

It is an amenable number.

55555825 is a deficient number, since it is larger than the sum of its proper divisors (19092175).

55555825 is a wasteful number, since it uses less digits than its factorization.

55555825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1076 counting only the distinct ones).

The product of its digits is 250000, while the sum is 40.

The square root of 55555825 is about 7453.5779998602. The cubic root of 55555825 is about 381.5720310572.

The spelling of 55555825 in words is "fifty-five million, five hundred fifty-five thousand, eight hundred twenty-five".