55723163225 has 12 divisors (see below), whose sum is σ = 69321802704. Its totient is φ = 44433317520.

The previous prime is 55723163213. The next prime is 55723163233. The reversal of 55723163225 is 52236132755.

It is a de Polignac number, because none of the positive numbers 2^k-55723163225 is a prime.

It is a Duffinian 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, 3622499 + ... + 3637848.

It is an arithmetic number, because the mean of its divisors is an integer number (5776816892).

Almost surely, 2^55723163225 is an apocalyptic number.

It is an amenable number.

55723163225 is a deficient number, since it is larger than the sum of its proper divisors (13598639479).

55723163225 is a wasteful number, since it uses less digits than its factorization.

55723163225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260664 (or 7260659 counting only the distinct ones).

The product of its digits is 378000, while the sum is 41.

The spelling of 55723163225 in words is "fifty-five billion, seven hundred twenty-three million, one hundred sixty-three thousand, two hundred twenty-five".