55618956 has 36 divisors (see below), whose sum is σ = 141135904. Its totient is φ = 18468000.

The previous prime is 55618949. The next prime is 55618957. The reversal of 55618956 is 65981655.

It is a happy number.

55618956 is a `hidden beast` number, since 5 + 561 + 89 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (55618957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6906 + ... + 12606.

Almost surely, 2^55618956 is an apocalyptic number.

It is an amenable number.

55618956 is an abundant number, since it is smaller than the sum of its proper divisors (85516948).

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

55618956 is a wasteful number, since it uses less digits than its factorization.

55618956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982 (or 5977 counting only the distinct ones).

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

The square root of 55618956 is about 7457.8117434003. The cubic root of 55618956 is about 381.7165097872.

The spelling of 55618956 in words is "fifty-five million, six hundred eighteen thousand, nine hundred fifty-six".