12508375500 has 144 divisors (see below), whose sum is σ = 39704167776. Its totient is φ = 3314908800.

The previous prime is 12508375487. The next prime is 12508375567. The reversal of 12508375500 is 557380521.

12508375500 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 83 + 75 + 500 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 724974 + ... + 742026.

Almost surely, 2^12508375500 is an apocalyptic number.

12508375500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12508375500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19852083888).

12508375500 is an abundant number, since it is smaller than the sum of its proper divisors (27195792276).

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

12508375500 is a wasteful number, since it uses less digits than its factorization.

12508375500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17241 (or 17226 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 12508375500 in words is "twelve billion, five hundred eight million, three hundred seventy-five thousand, five hundred".