55591575 has 96 divisors (see below), whose sum is σ = 107659776. Its totient is φ = 25090560.

The previous prime is 55591567. The next prime is 55591577. The reversal of 55591575 is 57519555.

It is not a de Polignac number, because 55591575 - 2³ = 55591567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55591577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 829692 + ... + 829758.

It is an arithmetic number, because the mean of its divisors is an integer number (1121456).

Almost surely, 2^55591575 is an apocalyptic number.

55591575 is a deficient number, since it is larger than the sum of its proper divisors (52068201).

55591575 is a wasteful number, since it uses less digits than its factorization.

55591575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 148 counting only the distinct ones).

The product of its digits is 196875, while the sum is 42.

The square root of 55591575 is about 7455.9757912697. The cubic root of 55591575 is about 381.6538603112.

The spelling of 55591575 in words is "fifty-five million, five hundred ninety-one thousand, five hundred seventy-five".