55947177 has 48 divisors (see below), whose sum is σ = 98280000. Its totient is φ = 30199680.

The previous prime is 55947169. The next prime is 55947239. The reversal of 55947177 is 77174955.

It is not a de Polignac number, because 55947177 - 2³ = 55947169 is a prime.

It is a super-2 number, since 2×55947177² = 6260173228538658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55947877) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36574 + ... + 38072.

It is an arithmetic number, because the mean of its divisors is an integer number (2047500).

Almost surely, 2^55947177 is an apocalyptic number.

It is an amenable number.

55947177 is a deficient number, since it is larger than the sum of its proper divisors (42332823).

55947177 is a wasteful number, since it uses less digits than its factorization.

55947177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558 (or 1555 counting only the distinct ones).

The product of its digits is 308700, while the sum is 45.

The square root of 55947177 is about 7479.7845557208. The cubic root of 55947177 is about 382.4659049451.

The spelling of 55947177 in words is "fifty-five million, nine hundred forty-seven thousand, one hundred seventy-seven".