55624523868 has 18 divisors (see below), whose sum is σ = 140606435424. Its totient is φ = 18541507944.

The previous prime is 55624523837. The next prime is 55624523869. The reversal of 55624523868 is 86832542655.

55624523868 is a `hidden beast` number, since 5 + 5 + 624 + 5 + 2 + 3 + 8 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55624523869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 772562796 + ... + 772562867.

Almost surely, 2^55624523868 is an apocalyptic number.

It is an amenable number.

55624523868 is an abundant number, since it is smaller than the sum of its proper divisors (84981911556).

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

55624523868 is a wasteful number, since it uses less digits than its factorization.

55624523868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545125673 (or 1545125668 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 54.

The spelling of 55624523868 in words is "fifty-five billion, six hundred twenty-four million, five hundred twenty-three thousand, eight hundred sixty-eight".