12512451525 has 48 divisors (see below), whose sum is σ = 23675817984. Its totient is φ = 5711935680.

The previous prime is 12512451517. The next prime is 12512451533. The reversal of 12512451525 is 52515421521.

It is an interprime number because it is at equal distance from previous prime (12512451517) and next prime (12512451533).

It is not a de Polignac number, because 12512451525 - 2³ = 12512451517 is a prime.

It is a super-2 number, since 2×12512451525² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 365284 + ... + 398066.

It is an arithmetic number, because the mean of its divisors is an integer number (493246208).

Almost surely, 2^12512451525 is an apocalyptic number.

12512451525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12512451525 is a deficient number, since it is larger than the sum of its proper divisors (11163366459).

12512451525 is a wasteful number, since it uses less digits than its factorization.

12512451525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33530 (or 33525 counting only the distinct ones).

The product of its digits is 20000, while the sum is 33.

The spelling of 12512451525 in words is "twelve billion, five hundred twelve million, four hundred fifty-one thousand, five hundred twenty-five".