55958616 has 48 divisors (see below), whose sum is σ = 173206800. Its totient is φ = 15988032.

The previous prime is 55958599. The next prime is 55958633. The reversal of 55958616 is 61685955.

It is a happy number.

55958616 is a `hidden beast` number, since 5 + 59 + 586 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (55958599) and next prime (55958633).

It is a congruent number.

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, 55011 + ... + 56018.

It is an arithmetic number, because the mean of its divisors is an integer number (3608475).

Almost surely, 2^55958616 is an apocalyptic number.

55958616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55958616 is an abundant number, since it is smaller than the sum of its proper divisors (117248184).

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

55958616 is a wasteful number, since it uses less digits than its factorization.

55958616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111048 (or 111041 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The square root of 55958616 is about 7480.5491777008. The cubic root of 55958616 is about 382.4919695866.

The spelling of 55958616 in words is "fifty-five million, nine hundred fifty-eight thousand, six hundred sixteen".