55664125 has 16 divisors (see below), whose sum is σ = 75786048. Its totient is φ = 40482000.

The previous prime is 55664107. The next prime is 55664131. The reversal of 55664125 is 52146655.

It is not a de Polignac number, because 55664125 - 2²³ = 47275517 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 18867 + ... + 21616.

It is an arithmetic number, because the mean of its divisors is an integer number (4736628).

Almost surely, 2^55664125 is an apocalyptic number.

55664125 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55664125 is a deficient number, since it is larger than the sum of its proper divisors (20121923).

55664125 is a wasteful number, since it uses less digits than its factorization.

55664125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40509 (or 40499 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 55664125 is about 7460.8394299837. The cubic root of 55664125 is about 381.8198144213.

The spelling of 55664125 in words is "fifty-five million, six hundred sixty-four thousand, one hundred twenty-five".