12525161238 has 12 divisors (see below), whose sum is σ = 27137849388. Its totient is φ = 4175053740.

The previous prime is 12525161141. The next prime is 12525161239. The reversal of 12525161238 is 83216152521.

12525161238 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 5 + 1 + 612 + 38 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525161239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 347921128 + ... + 347921163.

It is an arithmetic number, because the mean of its divisors is an integer number (2261487449).

Almost surely, 2^12525161238 is an apocalyptic number.

12525161238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12525161238 is an abundant number, since it is smaller than the sum of its proper divisors (14612688150).

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

12525161238 is a wasteful number, since it uses less digits than its factorization.

12525161238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695842299 (or 695842296 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The spelling of 12525161238 in words is "twelve billion, five hundred twenty-five million, one hundred sixty-one thousand, two hundred thirty-eight".