55177297 has 4 divisors (see below), whose sum is σ = 63059776. Its totient is φ = 47294820.

The previous prime is 55177289. The next prime is 55177319. The reversal of 55177297 is 79277155.

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 a cyclic number.

It is not a de Polignac number, because 55177297 - 2³ = 55177289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55177277) 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, 3941229 + ... + 3941242.

It is an arithmetic number, because the mean of its divisors is an integer number (15764944).

Almost surely, 2^55177297 is an apocalyptic number.

It is an amenable number.

55177297 is a deficient number, since it is larger than the sum of its proper divisors (7882479).

55177297 is an equidigital number, since it uses as much as digits as its factorization.

55177297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7882478.

The product of its digits is 154350, while the sum is 43.

The square root of 55177297 is about 7428.1422307331. The cubic root of 55177297 is about 380.7034453822.

The spelling of 55177297 in words is "fifty-five million, one hundred seventy-seven thousand, two hundred ninety-seven".