12553905 has 64 divisors (see below), whose sum is σ = 26224128. Its totient is φ = 4976640.

The previous prime is 12553901. The next prime is 12553909. The reversal of 12553905 is 50935521.

It is an interprime number because it is at equal distance from previous prime (12553901) and next prime (12553909).

It is not a de Polignac number, because 12553905 - 2² = 12553901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12553901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22935 + ... + 23475.

It is an arithmetic number, because the mean of its divisors is an integer number (409752).

Almost surely, 2^12553905 is an apocalyptic number.

12553905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12553905 is an abundant number, since it is smaller than the sum of its proper divisors (13670223).

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

12553905 is a wasteful number, since it uses less digits than its factorization.

12553905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 12553905 is about 3543.1490231149. The cubic root of 12553905 is about 232.4125697395.

The spelling of 12553905 in words is "twelve million, five hundred fifty-three thousand, nine hundred five".