55121175 has 48 divisors (see below), whose sum is σ = 102215680. Its totient is φ = 29121120.

The previous prime is 55121159. The next prime is 55121201. The reversal of 55121175 is 57112155.

It is not a de Polignac number, because 55121175 - 2⁴ = 55121159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85404 + ... + 86046.

Almost surely, 2^55121175 is an apocalyptic number.

55121175 is a deficient number, since it is larger than the sum of its proper divisors (47094505).

55121175 is a wasteful number, since it uses less digits than its factorization.

55121175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 778 counting only the distinct ones).

The product of its digits is 1750, while the sum is 27.

The square root of 55121175 is about 7424.3636090914. The cubic root of 55121175 is about 380.5743277444.

The spelling of 55121175 in words is "fifty-five million, one hundred twenty-one thousand, one hundred seventy-five".