55777168 has 20 divisors (see below), whose sum is σ = 108244188. Its totient is φ = 27843200.

The previous prime is 55777159. The next prime is 55777181. The reversal of 55777168 is 86177755.

It can be written as a sum of positive squares in 2 ways, for example, as 42614784 + 13162384 = 6528^2 + 3628^2 .

It is a super-2 number, since 2×55777168² = 6222184940200448, which contains 22 as substring.

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, 8730 + ... + 13702.

Almost surely, 2^55777168 is an apocalyptic number.

It is an amenable number.

55777168 is a deficient number, since it is larger than the sum of its proper divisors (52467020).

55777168 is a wasteful number, since it uses less digits than its factorization.

55777168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682 (or 5676 counting only the distinct ones).

The product of its digits is 411600, while the sum is 46.

The square root of 55777168 is about 7468.4113437866. The cubic root of 55777168 is about 382.0781068870.

It can be divided in two parts, 55777 and 168, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 55777168 in words is "fifty-five million, seven hundred seventy-seven thousand, one hundred sixty-eight".