72525252526 has 32 divisors (see below), whose sum is σ = 116449153920. Its totient is φ = 33773954400.

The previous prime is 72525252517. The next prime is 72525252581. The reversal of 72525252526 is 62525252527.

It is a congruent number.

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, 5433681 + ... + 5447011.

It is an arithmetic number, because the mean of its divisors is an integer number (3639036060).

Almost surely, 2^72525252526 is an apocalyptic number.

72525252526 is a deficient number, since it is larger than the sum of its proper divisors (43923901394).

72525252526 is a wasteful number, since it uses less digits than its factorization.

72525252526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15760.

The product of its digits is 840000, while the sum is 43.

Subtracting from 72525252526 its reverse (62525252527), we obtain a palindrome (9999999999).

The spelling of 72525252526 in words is "seventy-two billion, five hundred twenty-five million, two hundred fifty-two thousand, five hundred twenty-six".