55000625 has 10 divisors (see below), whose sum is σ = 68729562. Its totient is φ = 44000000.

The previous prime is 55000607. The next prime is 55000633. The reversal of 55000625 is 52600055.

It can be written as a sum of positive squares in 5 ways, for example, as 39891856 + 15108769 = 6316^2 + 3887^2 .

It is not a de Polignac number, because 55000625 - 2⁸ = 55000369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55000625.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 43376 + ... + 44625.

Almost surely, 2^55000625 is an apocalyptic number.

It is an amenable number.

55000625 is a deficient number, since it is larger than the sum of its proper divisors (13728937).

55000625 is an frugal number, since it uses more digits than its factorization.

55000625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88021 (or 88006 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55000625 is about 7416.2406244674. The cubic root of 55000625 is about 380.2966865830.

The spelling of 55000625 in words is "fifty-five million, six hundred twenty-five", and thus it is an aban number.