12524445520 has 40 divisors (see below), whose sum is σ = 29123990856. Its totient is φ = 5008977408.

The previous prime is 12524445509. The next prime is 12524445533. The reversal of 12524445520 is 2554442521.

It can be written as a sum of positive squares in 4 ways, for example, as 14470416 + 12509975104 = 3804^2 + 111848^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 983514 + ... + 996166.

Almost surely, 2^12524445520 is an apocalyptic number.

12524445520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12524445520 is an abundant number, since it is smaller than the sum of its proper divisors (16599545336).

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

12524445520 is a wasteful number, since it uses less digits than its factorization.

12524445520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25039 (or 25033 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

The spelling of 12524445520 in words is "twelve billion, five hundred twenty-four million, four hundred forty-five thousand, five hundred twenty".