55725648 has 40 divisors (see below), whose sum is σ = 157046496. Its totient is φ = 16886400.

The previous prime is 55725629. The next prime is 55725653. The reversal of 55725648 is 84652755.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52243 + ... + 53298.

Almost surely, 2^55725648 is an apocalyptic number.

It is an amenable number.

55725648 is an abundant number, since it is smaller than the sum of its proper divisors (101320848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55725648 is a wasteful number, since it uses less digits than its factorization.

55725648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105563 (or 105557 counting only the distinct ones).

The product of its digits is 336000, while the sum is 42.

The square root of 55725648 is about 7464.9613528805. The cubic root of 55725648 is about 381.9604319277.

The spelling of 55725648 in words is "fifty-five million, seven hundred twenty-five thousand, six hundred forty-eight".