12505425576 has 32 divisors (see below), whose sum is σ = 35729787840. Its totient is φ = 3572978688.

The previous prime is 12505425571. The next prime is 12505425613. The reversal of 12505425576 is 67552450521.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (12505425571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37218361 + ... + 37218696.

It is an arithmetic number, because the mean of its divisors is an integer number (1116555870).

Almost surely, 2^12505425576 is an apocalyptic number.

It is an amenable number.

12505425576 is an abundant number, since it is smaller than the sum of its proper divisors (23224362264).

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

12505425576 is a wasteful number, since it uses less digits than its factorization.

12505425576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74437073 (or 74437069 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 12505425576 in words is "twelve billion, five hundred five million, four hundred twenty-five thousand, five hundred seventy-six".