55630755 has 12 divisors (see below), whose sum is σ = 96426720. Its totient is φ = 29669712.

The previous prime is 55630739. The next prime is 55630763. The reversal of 55630755 is 55703655.

55630755 is a `hidden beast` number, since 556 + 30 + 75 + 5 = 666.

It is not a de Polignac number, because 55630755 - 2⁴ = 55630739 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618075 + ... + 618164.

It is an arithmetic number, because the mean of its divisors is an integer number (8035560).

Almost surely, 2^55630755 is an apocalyptic number.

55630755 is a deficient number, since it is larger than the sum of its proper divisors (40795965).

55630755 is a wasteful number, since it uses less digits than its factorization.

55630755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236250 (or 1236247 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 55630755 is about 7458.6027511860. The cubic root of 55630755 is about 381.7435003133.

Subtracting 55630755 from its reverse (55703655), we obtain a square (72900 = 270²).

The spelling of 55630755 in words is "fifty-five million, six hundred thirty thousand, seven hundred fifty-five".