22256512725 has 12 divisors (see below), whose sum is σ = 36797434496. Its totient is φ = 11870140080.

The previous prime is 22256512723. The next prime is 22256512757. The reversal of 22256512725 is 52721565222.

It is not a de Polignac number, because 22256512725 - 2¹ = 22256512723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22256512723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148376677 + ... + 148376826.

Almost surely, 2^22256512725 is an apocalyptic number.

22256512725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22256512725 is a deficient number, since it is larger than the sum of its proper divisors (14540921771).

22256512725 is a wasteful number, since it uses less digits than its factorization.

22256512725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296753516 (or 296753511 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The spelling of 22256512725 in words is "twenty-two billion, two hundred fifty-six million, five hundred twelve thousand, seven hundred twenty-five".