725616513622 has 288 divisors, whose sum is σ = 1547390283264. Its totient is φ = 252084268800.

The previous prime is 725616513619. The next prime is 725616513631. The reversal of 725616513622 is 226315616527.

It is a happy number.

It is a super-2 number, since 2×725616513622² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 710691472 + ... + 710692492.

It is an arithmetic number, because the mean of its divisors is an integer number (5372882928).

Almost surely, 2^725616513622 is an apocalyptic number.

725616513622 is an abundant number, since it is smaller than the sum of its proper divisors (821773769642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725616513622 is a wasteful number, since it uses less digits than its factorization.

725616513622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1184 counting only the distinct ones).

The product of its digits is 907200, while the sum is 46.

The spelling of 725616513622 in words is "seven hundred twenty-five billion, six hundred sixteen million, five hundred thirteen thousand, six hundred twenty-two".