55761288 has 32 divisors (see below), whose sum is σ = 152076960. Its totient is φ = 16897280.

The previous prime is 55761227. The next prime is 55761347. The reversal of 55761288 is 88216755.

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, 105345 + ... + 105872.

It is an arithmetic number, because the mean of its divisors is an integer number (4752405).

Almost surely, 2^55761288 is an apocalyptic number.

It is an amenable number.

55761288 is an abundant number, since it is smaller than the sum of its proper divisors (96315672).

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

55761288 is a wasteful number, since it uses less digits than its factorization.

55761288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211237 (or 211233 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 55761288 is about 7467.3481236648. The cubic root of 55761288 is about 382.0418436844.

The spelling of 55761288 in words is "fifty-five million, seven hundred sixty-one thousand, two hundred eighty-eight".