72225562625 has 8 divisors (see below), whose sum is σ = 90137502312. Its totient is φ = 57780450000.

The previous prime is 72225562579. The next prime is 72225562627. The reversal of 72225562625 is 52626552227.

It can be written as a sum of positive squares in 4 ways, for example, as 791240641 + 71434321984 = 28129^2 + 267272^2 .

It is not a de Polignac number, because 72225562625 - 2⁸ = 72225562369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72225562627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288902126 + ... + 288902375.

It is an arithmetic number, because the mean of its divisors is an integer number (11267187789).

Almost surely, 2^72225562625 is an apocalyptic number.

It is an amenable number.

72225562625 is a deficient number, since it is larger than the sum of its proper divisors (17911939687).

72225562625 is an equidigital number, since it uses as much as digits as its factorization.

72225562625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577804516 (or 577804506 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 44.

The spelling of 72225562625 in words is "seventy-two billion, two hundred twenty-five million, five hundred sixty-two thousand, six hundred twenty-five".