12554920 has 32 divisors (see below), whose sum is σ = 32284800. Its totient is φ = 4304448.

The previous prime is 12554911. The next prime is 12554921. The reversal of 12554920 is 2945521.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (12554921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22140 + ... + 22699.

It is an arithmetic number, because the mean of its divisors is an integer number (1008900).

Almost surely, 2^12554920 is an apocalyptic number.

12554920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12554920 is an abundant number, since it is smaller than the sum of its proper divisors (19729880).

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

12554920 is a wasteful number, since it uses less digits than its factorization.

12554920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44857 (or 44853 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 12554920 is about 3543.2922543872. The cubic root of 12554920 is about 232.4188331930.

The spelling of 12554920 in words is "twelve million, five hundred fifty-four thousand, nine hundred twenty".