55495760 has 20 divisors (see below), whose sum is σ = 129027828. Its totient is φ = 22198272.

The previous prime is 55495733. The next prime is 55495771. The reversal of 55495760 is 6759455.

It can be written as a sum of positive squares in 2 ways, for example, as 41267776 + 14227984 = 6424^2 + 3772^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346769 + ... + 346928.

Almost surely, 2^55495760 is an apocalyptic number.

It is an amenable number.

55495760 is an abundant number, since it is smaller than the sum of its proper divisors (73532068).

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

55495760 is a wasteful number, since it uses less digits than its factorization.

55495760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693710 (or 693704 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 55495760 is about 7449.5476372730. The cubic root of 55495760 is about 381.4344673917.

The spelling of 55495760 in words is "fifty-five million, four hundred ninety-five thousand, seven hundred sixty".