55994976 has 144 divisors (see below), whose sum is σ = 174283200. Its totient is φ = 17635968.

The previous prime is 55994951. The next prime is 55994993. The reversal of 55994976 is 67949955.

55994976 is a `hidden beast` number, since 5 + 599 + 49 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147555 + ... + 147933.

It is an arithmetic number, because the mean of its divisors is an integer number (1210300).

Almost surely, 2^55994976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55994976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87141600).

55994976 is an abundant number, since it is smaller than the sum of its proper divisors (118288224).

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

55994976 is a wasteful number, since it uses less digits than its factorization.

55994976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 403 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 54.

The square root of 55994976 is about 7482.9790858989. The cubic root of 55994976 is about 382.5747950620.

The spelling of 55994976 in words is "fifty-five million, nine hundred ninety-four thousand, nine hundred seventy-six".