12571369225 has 6 divisors (see below), whose sum is σ = 15588497870. Its totient is φ = 10057095360.

The previous prime is 12571369177. The next prime is 12571369231. The reversal of 12571369225 is 52296317521.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3742135929 + 8829233296 = 61173^2 + 93964^2 .

It is not a de Polignac number, because 12571369225 - 2²¹ = 12569272073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251427360 + ... + 251427409.

Almost surely, 2^12571369225 is an apocalyptic number.

It is an amenable number.

12571369225 is a deficient number, since it is larger than the sum of its proper divisors (3017128645).

12571369225 is an equidigital number, since it uses as much as digits as its factorization.

12571369225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502854779 (or 502854774 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The spelling of 12571369225 in words is "twelve billion, five hundred seventy-one million, three hundred sixty-nine thousand, two hundred twenty-five".