12125525052 has 24 divisors (see below), whose sum is σ = 28295309056. Its totient is φ = 4041496368.

The previous prime is 12125525011. The next prime is 12125525081. The reversal of 12125525052 is 25052552121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131373 + ... + 203739.

Almost surely, 2^12125525052 is an apocalyptic number.

12125525052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12125525052 is an abundant number, since it is smaller than the sum of its proper divisors (16169784004).

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

12125525052 is a wasteful number, since it uses less digits than its factorization.

12125525052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86337 (or 86335 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 12125525052 in words is "twelve billion, one hundred twenty-five million, five hundred twenty-five thousand, fifty-two".