55607868 has 18 divisors (see below), whose sum is σ = 140564424. Its totient is φ = 18535944.

The previous prime is 55607857. The next prime is 55607879. The reversal of 55607868 is 86870655.

55607868 is a `hidden beast` number, since 5 + 560 + 7 + 86 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (55607857) and next prime (55607879).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 772296 + ... + 772367.

Almost surely, 2^55607868 is an apocalyptic number.

It is an amenable number.

55607868 is an abundant number, since it is smaller than the sum of its proper divisors (84956556).

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

55607868 is a wasteful number, since it uses less digits than its factorization.

55607868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544673 (or 1544668 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 55607868 is about 7457.0683247507. The cubic root of 55607868 is about 381.6911422131.

The spelling of 55607868 in words is "fifty-five million, six hundred seven thousand, eight hundred sixty-eight".