55175977 has 4 divisors (see below), whose sum is σ = 55282000. Its totient is φ = 55069956.

The previous prime is 55175971. The next prime is 55175983. The reversal of 55175977 is 77957155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (55175971) and next prime (55175983).

It is a cyclic number.

It is not a de Polignac number, because 55175977 - 2³ = 55175969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55175971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52227 + ... + 53272.

It is an arithmetic number, because the mean of its divisors is an integer number (13820500).

Almost surely, 2^55175977 is an apocalyptic number.

It is an amenable number.

55175977 is a deficient number, since it is larger than the sum of its proper divisors (106023).

55175977 is a wasteful number, since it uses less digits than its factorization.

55175977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106022.

The product of its digits is 385875, while the sum is 46.

The square root of 55175977 is about 7428.0533789143. The cubic root of 55175977 is about 380.7004095167.

The spelling of 55175977 in words is "fifty-five million, one hundred seventy-five thousand, nine hundred seventy-seven".