55880568 has 24 divisors (see below), whose sum is σ = 151343400. Its totient is φ = 18626832.

The previous prime is 55880567. The next prime is 55880579. The reversal of 55880568 is 86508855.

55880568 is a `hidden beast` number, since 5 + 5 + 8 + 80 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55880563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 387988 + ... + 388131.

It is an arithmetic number, because the mean of its divisors is an integer number (6305975).

Almost surely, 2^55880568 is an apocalyptic number.

It is an amenable number.

55880568 is an abundant number, since it is smaller than the sum of its proper divisors (95462832).

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

55880568 is a wasteful number, since it uses less digits than its factorization.

55880568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776131 (or 776124 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The square root of 55880568 is about 7475.3306281395. The cubic root of 55880568 is about 382.3140605941.

The spelling of 55880568 in words is "fifty-five million, eight hundred eighty thousand, five hundred sixty-eight".