55197575 has 12 divisors (see below), whose sum is σ = 68537280. Its totient is φ = 44098560.

The previous prime is 55197557. The next prime is 55197581. The reversal of 55197575 is 57579155.

It is a happy number.

It is not a de Polignac number, because 55197575 - 2⁸ = 55197319 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34442 + ... + 36008.

It is an arithmetic number, because the mean of its divisors is an integer number (5711440).

Almost surely, 2^55197575 is an apocalyptic number.

55197575 is a deficient number, since it is larger than the sum of its proper divisors (13339705).

55197575 is a wasteful number, since it uses less digits than its factorization.

55197575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986 (or 2981 counting only the distinct ones).

The product of its digits is 275625, while the sum is 44.

The square root of 55197575 is about 7429.5070495962. The cubic root of 55197575 is about 380.7500766319.

The spelling of 55197575 in words is "fifty-five million, one hundred ninety-seven thousand, five hundred seventy-five".