55818925 has 12 divisors (see below), whose sum is σ = 69717760. Its totient is φ = 44331120.

The previous prime is 55818923. The next prime is 55818937. The reversal of 55818925 is 52981855.

It is not a de Polignac number, because 55818925 - 2¹ = 55818923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55818923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4557 + ... + 11506.

Almost surely, 2^55818925 is an apocalyptic number.

It is an amenable number.

55818925 is a deficient number, since it is larger than the sum of its proper divisors (13898835).

55818925 is a wasteful number, since it uses less digits than its factorization.

55818925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16212 (or 16207 counting only the distinct ones).

The product of its digits is 144000, while the sum is 43.

The square root of 55818925 is about 7471.2063952216. The cubic root of 55818925 is about 382.1734293780.

The spelling of 55818925 in words is "fifty-five million, eight hundred eighteen thousand, nine hundred twenty-five".