12512500 has 144 divisors (see below), whose sum is σ = 36747648. Its totient is φ = 3600000.

The previous prime is 12512447. The next prime is 12512501. The reversal of 12512500 is 521521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 962494 + ... + 962506.

It is an arithmetic number, because the mean of its divisors is an integer number (255192).

Almost surely, 2^12512500 is an apocalyptic number.

12512500 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 12512500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18373824).

12512500 is an abundant number, since it is smaller than the sum of its proper divisors (24235148).

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

12512500 is a wasteful number, since it uses less digits than its factorization.

12512500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 12512500 is about 3537.3012311648. The cubic root of 12512500 is about 232.1567757222.

It can be divided in two parts, 125 and 12500, that multiplied together give a square (1562500 = 1250²).

The spelling of 12512500 in words is "twelve million, five hundred twelve thousand, five hundred".