55177066 has 16 divisors (see below), whose sum is σ = 94731840. Its totient is φ = 23611680.

The previous prime is 55177039. The next prime is 55177091. The reversal of 55177066 is 66077155.

It is a super-2 number, since 2×55177066² = 6089017224736712, 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, 8065 + ... + 13243.

It is an arithmetic number, because the mean of its divisors is an integer number (5920740).

Almost surely, 2^55177066 is an apocalyptic number.

55177066 is a deficient number, since it is larger than the sum of its proper divisors (39554774).

55177066 is a wasteful number, since it uses less digits than its factorization.

55177066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5949.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 55177066 is about 7428.1266817415. The cubic root of 55177066 is about 380.7029141092.

The spelling of 55177066 in words is "fifty-five million, one hundred seventy-seven thousand, sixty-six".