55776748 has 24 divisors (see below), whose sum is σ = 103299840. Its totient is φ = 26297040.

The previous prime is 55776739. The next prime is 55776751. The reversal of 55776748 is 84767755.

It is a happy number.

It is a super-2 number, since 2×55776748² = 6222091234911008, which contains 22 as substring.

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, 2263 + ... + 10801.

It is an arithmetic number, because the mean of its divisors is an integer number (4304160).

Almost surely, 2^55776748 is an apocalyptic number.

It is an amenable number.

55776748 is a deficient number, since it is larger than the sum of its proper divisors (47523092).

55776748 is a wasteful number, since it uses less digits than its factorization.

55776748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8637 (or 8635 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 49.

The square root of 55776748 is about 7468.3832253039. The cubic root of 55776748 is about 382.0771478733.

The spelling of 55776748 in words is "fifty-five million, seven hundred seventy-six thousand, seven hundred forty-eight".