12485500 has 24 divisors (see below), whose sum is σ = 27269424. Its totient is φ = 4994000.

The previous prime is 12485491. The next prime is 12485507. The reversal of 12485500 is 558421.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12485507) 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, 11986 + ... + 12985.

It is an arithmetic number, because the mean of its divisors is an integer number (1136226).

Almost surely, 2^12485500 is an apocalyptic number.

12485500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12485500 is an abundant number, since it is smaller than the sum of its proper divisors (14783924).

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

12485500 is a wasteful number, since it uses less digits than its factorization.

12485500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24990 (or 24978 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 12485500 is about 3533.4827012453. The cubic root of 12485500 is about 231.9896695757.

The spelling of 12485500 in words is "twelve million, four hundred eighty-five thousand, five hundred".