12501502540 has 12 divisors (see below), whose sum is σ = 26253155376. Its totient is φ = 5000601008.

The previous prime is 12501502529. The next prime is 12501502543. The reversal of 12501502540 is 4520510521.

It is not an unprimeable number, because it can be changed into a prime (12501502543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312537544 + ... + 312537583.

It is an arithmetic number, because the mean of its divisors is an integer number (2187762948).

Almost surely, 2^12501502540 is an apocalyptic number.

12501502540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12501502540 is an abundant number, since it is smaller than the sum of its proper divisors (13751652836).

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

12501502540 is a wasteful number, since it uses less digits than its factorization.

12501502540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625075136 (or 625075134 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 12501502540 in words is "twelve billion, five hundred one million, five hundred two thousand, five hundred forty".