72157725426525 has 24 divisors (see below), whose sum is σ = 119301144800544. Its totient is φ = 38484000196800.

The previous prime is 72157725426503. The next prime is 72157725426539. The reversal of 72157725426525 is 52562452775127.

It is not a de Polignac number, because 72157725426525 - 2¹⁵ = 72157725393757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26058702 + ... + 28694448.

It is an arithmetic number, because the mean of its divisors is an integer number (4970881033356).

Almost surely, 2^{72157725426525} is an apocalyptic number.

72157725426525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

72157725426525 is a deficient number, since it is larger than the sum of its proper divisors (47143419374019).

72157725426525 is a wasteful number, since it uses less digits than its factorization.

72157725426525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000781 (or 3000776 counting only the distinct ones).

The product of its digits is 82320000, while the sum is 60.

The spelling of 72157725426525 in words is "seventy-two trillion, one hundred fifty-seven billion, seven hundred twenty-five million, four hundred twenty-six thousand, five hundred twenty-five".