55880766 has 28 divisors (see below), whose sum is σ = 125677512. Its totient is φ = 18626436.

The previous prime is 55880723. The next prime is 55880807. The reversal of 55880766 is 66708855.

55880766 is a `hidden beast` number, since 5 + 588 + 0 + 7 + 66 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 17706 + ... + 20621.

Almost surely, 2^55880766 is an apocalyptic number.

55880766 is an abundant number, since it is smaller than the sum of its proper divisors (69796746).

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

55880766 is an equidigital number, since it uses as much as digits as its factorization.

55880766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38347 (or 38332 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 55880766 is about 7475.3438716891. The cubic root of 55880766 is about 382.3145121410.

The spelling of 55880766 in words is "fifty-five million, eight hundred eighty thousand, seven hundred sixty-six".