972155955 has 16 divisors (see below), whose sum is σ = 1555939584. Its totient is φ = 518319840.

The previous prime is 972155923. The next prime is 972155993. The reversal of 972155955 is 559551279.

It is not a de Polignac number, because 972155955 - 2⁵ = 972155923 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50722 + ... + 67208.

It is an arithmetic number, because the mean of its divisors is an integer number (97246224).

Almost surely, 2^972155955 is an apocalyptic number.

972155955 is a deficient number, since it is larger than the sum of its proper divisors (583783629).

972155955 is a wasteful number, since it uses less digits than its factorization.

972155955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20426.

The product of its digits is 708750, while the sum is 48.

The square root of 972155955 is about 31179.4155654015. The cubic root of 972155955 is about 990.6311504426.

The spelling of 972155955 in words is "nine hundred seventy-two million, one hundred fifty-five thousand, nine hundred fifty-five".