12577222525 has 24 divisors (see below), whose sum is σ = 18258456384. Its totient is φ = 8414025600.

The previous prime is 12577222453. The next prime is 12577222531. The reversal of 12577222525 is 52522277521.

It is not a de Polignac number, because 12577222525 - 2¹⁹ = 12576698237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 869287 + ... + 883636.

It is an arithmetic number, because the mean of its divisors is an integer number (760769016).

Almost surely, 2^12577222525 is an apocalyptic number.

It is an amenable number.

12577222525 is a deficient number, since it is larger than the sum of its proper divisors (5681233859).

12577222525 is a wasteful number, since it uses less digits than its factorization.

12577222525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752981 (or 1752976 counting only the distinct ones).

The product of its digits is 196000, while the sum is 40.

The spelling of 12577222525 in words is "twelve billion, five hundred seventy-seven million, two hundred twenty-two thousand, five hundred twenty-five".