12522057604 has 27 divisors (see below), whose sum is σ = 25494521157. Its totient is φ = 5365924704.

The previous prime is 12522057553. The next prime is 12522057607. The reversal of 12522057604 is 40675022521.

The square root of 12522057604 is 111902.

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., 1105562500 + 11416495104 = 33250^2 + 106848^2 .

It is a super-3 number, since 3×12522057604³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12522057604.

It is not an unprimeable number, because it can be changed into a prime (12522057607) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1562632 + ... + 1570624.

Almost surely, 2^12522057604 is an apocalyptic number.

12522057604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12522057604 is the 111902-nd square number.

It is an amenable number.

12522057604 is an abundant number, since it is smaller than the sum of its proper divisors (12972463553).

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

12522057604 is an frugal number, since it uses more digits than its factorization.

12522057604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16004 (or 8002 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 12522057604 in words is "twelve billion, five hundred twenty-two million, fifty-seven thousand, six hundred four".