12653500 has 24 divisors (see below), whose sum is σ = 27636336. Its totient is φ = 5061200.

The previous prime is 12653497. The next prime is 12653503. The reversal of 12653500 is 535621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12653497) and next prime (12653503).

It is a super-2 number, since 2×12653500² = 320222124500000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12653503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12154 + ... + 13153.

It is an arithmetic number, because the mean of its divisors is an integer number (1151514).

Almost surely, 2^12653500 is an apocalyptic number.

12653500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12653500 is an abundant number, since it is smaller than the sum of its proper divisors (14982836).

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

12653500 is a wasteful number, since it uses less digits than its factorization.

12653500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25326 (or 25314 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 12653500 is about 3557.1758460891. The cubic root of 12653500 is about 233.0255579300.

The spelling of 12653500 in words is "twelve million, six hundred fifty-three thousand, five hundred".