55994880 has 160 divisors (see below), whose sum is σ = 187380864. Its totient is φ = 14237696.

The previous prime is 55994879. The next prime is 55994893. The reversal of 55994880 is 8849955.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176482 + ... + 176798.

Almost surely, 2^55994880 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 55994880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93690432).

55994880 is an abundant number, since it is smaller than the sum of its proper divisors (131385984).

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

55994880 is a wasteful number, since it uses less digits than its factorization.

55994880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 55994880 is about 7482.9726713386. The cubic root of 55994880 is about 382.5745764281.

The spelling of 55994880 in words is "fifty-five million, nine hundred ninety-four thousand, eight hundred eighty".