55990677 has 16 divisors (see below), whose sum is σ = 78877440. Its totient is φ = 35270592.

The previous prime is 55990637. The next prime is 55990679. The reversal of 55990677 is 77609955.

It is not a de Polignac number, because 55990677 - 2⁸ = 55990421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55990679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2758 + ... + 10935.

It is an arithmetic number, because the mean of its divisors is an integer number (4929840).

Almost surely, 2^55990677 is an apocalyptic number.

It is an amenable number.

55990677 is a deficient number, since it is larger than the sum of its proper divisors (22886763).

55990677 is a wasteful number, since it uses less digits than its factorization.

55990677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13772.

The product of its (nonzero) digits is 595350, while the sum is 48.

The square root of 55990677 is about 7482.6918284799. The cubic root of 55990677 is about 382.5650041173.

The spelling of 55990677 in words is "fifty-five million, nine hundred ninety thousand, six hundred seventy-seven".