172902244925 has 24 divisors (see below), whose sum is σ = 219708771072. Its totient is φ = 134898480000.

The previous prime is 172902244903. The next prime is 172902244927. The reversal of 172902244925 is 529442209271.

It is not a de Polignac number, because 172902244925 - 2¹⁰ = 172902243901 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 172902244925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172902244927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2892692 + ... + 2951858.

It is an arithmetic number, because the mean of its divisors is an integer number (9154532128).

Almost surely, 2^172902244925 is an apocalyptic number.

It is an amenable number.

172902244925 is a deficient number, since it is larger than the sum of its proper divisors (46806526147).

172902244925 is a wasteful number, since it uses less digits than its factorization.

172902244925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62069 (or 62064 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 172902244925 in words is "one hundred seventy-two billion, nine hundred two million, two hundred forty-four thousand, nine hundred twenty-five".