12495886225 has 27 divisors (see below), whose sum is σ = 15749169723. Its totient is φ = 9835291440.

The previous prime is 12495886219. The next prime is 12495886279. The reversal of 12495886225 is 52268859421.

The square root of 12495886225 is 111785.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4498519041 + 7997367184 = 67071^2 + 89428^2 .

It is not a de Polignac number, because 12495886225 - 2³ = 12495886217 is a prime.

It is a super-2 number, since 2×12495886225² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 44154934 + ... + 44155216.

Almost surely, 2^12495886225 is an apocalyptic number.

12495886225 is the 111785-th square number.

12495886225 is the 55893-rd centered octagonal number.

It is an amenable number.

12495886225 is a deficient number, since it is larger than the sum of its proper divisors (3253283498).

12495886225 is an frugal number, since it uses more digits than its factorization.

12495886225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 367 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 52.

The spelling of 12495886225 in words is "twelve billion, four hundred ninety-five million, eight hundred eighty-six thousand, two hundred twenty-five".