55005625 has 40 divisors (see below), whose sum is σ = 75575808. Its totient is φ = 39840000.

The previous prime is 55005623. The next prime is 55005631. The reversal of 55005625 is 52650055.

It is not a de Polignac number, because 55005625 - 2¹ = 55005623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55005593 and 55005602.

It is not an unprimeable number, because it can be changed into a prime (55005623) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 329292 + ... + 329458.

Almost surely, 2^55005625 is an apocalyptic number.

It is an amenable number.

55005625 is a deficient number, since it is larger than the sum of its proper divisors (20570183).

55005625 is a wasteful number, since it uses less digits than its factorization.

55005625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 55005625 is about 7416.5777148224. The cubic root of 55005625 is about 380.3082102449.

The spelling of 55005625 in words is "fifty-five million, five thousand, six hundred twenty-five".