172227562503 has 24 divisors (see below), whose sum is σ = 234599258880. Its totient is φ = 112388246880.

The previous prime is 172227562489. The next prime is 172227562553. The reversal of 172227562503 is 305265722271.

It is not a de Polignac number, because 172227562503 - 2⁴ = 172227562487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172227562553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3608328 + ... + 3655746.

It is an arithmetic number, because the mean of its divisors is an integer number (9774969120).

Almost surely, 2^172227562503 is an apocalyptic number.

172227562503 is a deficient number, since it is larger than the sum of its proper divisors (62371696377).

172227562503 is an equidigital number, since it uses as much as digits as its factorization.

172227562503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47959 (or 47906 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 172227562503 in words is "one hundred seventy-two billion, two hundred twenty-seven million, five hundred sixty-two thousand, five hundred three".