55917295225 has 12 divisors (see below), whose sum is σ = 75640850640. Its totient is φ = 40667123600.

The previous prime is 55917295193. The next prime is 55917295243. The reversal of 55917295225 is 52259271955.

It is not a de Polignac number, because 55917295225 - 2⁵ = 55917295193 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101667535 + ... + 101668084.

It is an arithmetic number, because the mean of its divisors is an integer number (6303404220).

Almost surely, 2^55917295225 is an apocalyptic number.

55917295225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55917295225 is a deficient number, since it is larger than the sum of its proper divisors (19723555415).

55917295225 is a wasteful number, since it uses less digits than its factorization.

55917295225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203335640 (or 203335635 counting only the distinct ones).

The product of its digits is 2835000, while the sum is 52.

The spelling of 55917295225 in words is "fifty-five billion, nine hundred seventeen million, two hundred ninety-five thousand, two hundred twenty-five".