12553500 has 48 divisors (see below), whose sum is σ = 36560160. Its totient is φ = 3347200.

The previous prime is 12553493. The next prime is 12553511. The reversal of 12553500 is 535521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2685 + ... + 5684.

It is an arithmetic number, because the mean of its divisors is an integer number (761670).

Almost surely, 2^12553500 is an apocalyptic number.

12553500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12553500 is an abundant number, since it is smaller than the sum of its proper divisors (24006660).

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

12553500 is a wasteful number, since it uses less digits than its factorization.

12553500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8391 (or 8379 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 12553500 is about 3543.0918701044. The cubic root of 12553500 is about 232.4100704348.

The spelling of 12553500 in words is "twelve million, five hundred fifty-three thousand, five hundred".