55764560 has 40 divisors (see below), whose sum is σ = 132420096. Its totient is φ = 21829760.

The previous prime is 55764559. The next prime is 55764613. The reversal of 55764560 is 6546755.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3656 + ... + 11175.

Almost surely, 2^55764560 is an apocalyptic number.

It is an amenable number.

55764560 is an abundant number, since it is smaller than the sum of its proper divisors (76655536).

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

55764560 is a wasteful number, since it uses less digits than its factorization.

55764560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14891 (or 14885 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 55764560 is about 7467.5672075985. The cubic root of 55764560 is about 382.0493161114.

The spelling of 55764560 in words is "fifty-five million, seven hundred sixty-four thousand, five hundred sixty".