55205025 has 24 divisors (see below), whose sum is σ = 93220224. Its totient is φ = 28814400.

The previous prime is 55205011. The next prime is 55205053. The reversal of 55205025 is 52050255.

It is not a de Polignac number, because 55205025 - 2⁵ = 55204993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55204986 and 55205004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4306 + ... + 11355.

It is an arithmetic number, because the mean of its divisors is an integer number (3884176).

Almost surely, 2^55205025 is an apocalyptic number.

It is an amenable number.

55205025 is a deficient number, since it is larger than the sum of its proper divisors (38015199).

55205025 is a wasteful number, since it uses less digits than its factorization.

55205025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15721 (or 15716 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 55205025 is about 7430.0084118391. The cubic root of 55205025 is about 380.7672057689.

The spelling of 55205025 in words is "fifty-five million, two hundred five thousand, twenty-five".