12406536525 has 24 divisors (see below), whose sum is σ = 20524873824. Its totient is φ = 6612712000.

The previous prime is 12406536517. The next prime is 12406536547. The reversal of 12406536525 is 52563560421.

It is not a de Polignac number, because 12406536525 - 2³ = 12406536517 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, 72250 + ... + 173300.

It is an arithmetic number, because the mean of its divisors is an integer number (855203076).

Almost surely, 2^12406536525 is an apocalyptic number.

12406536525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12406536525 is a deficient number, since it is larger than the sum of its proper divisors (8118337299).

12406536525 is a wasteful number, since it uses less digits than its factorization.

12406536525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102701 (or 102696 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 12406536525 in words is "twelve billion, four hundred six million, five hundred thirty-six thousand, five hundred twenty-five".