725523466321 has 24 divisors (see below), whose sum is σ = 752980475520. Its totient is φ = 699020280000.

The previous prime is 725523466279. The next prime is 725523466361. The reversal of 725523466321 is 123664325527.

It is not a de Polignac number, because 725523466321 - 2²¹ = 725521369169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725523466361) 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, 59215446 + ... + 59227696.

It is an arithmetic number, because the mean of its divisors is an integer number (31374186480).

Almost surely, 2^725523466321 is an apocalyptic number.

It is an amenable number.

725523466321 is a deficient number, since it is larger than the sum of its proper divisors (27457009199).

725523466321 is a wasteful number, since it uses less digits than its factorization.

725523466321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12745 (or 12708 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 46.

The spelling of 725523466321 in words is "seven hundred twenty-five billion, five hundred twenty-three million, four hundred sixty-six thousand, three hundred twenty-one".