12545580 has 48 divisors (see below), whose sum is σ = 36658944. Its totient is φ = 3199680.

The previous prime is 12545563. The next prime is 12545581. The reversal of 12545580 is 8554521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12545581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3166 + ... + 5925.

It is an arithmetic number, because the mean of its divisors is an integer number (763728).

Almost surely, 2^12545580 is an apocalyptic number.

12545580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12545580 is an abundant number, since it is smaller than the sum of its proper divisors (24113364).

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

12545580 is a wasteful number, since it uses less digits than its factorization.

12545580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9126 (or 9124 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 12545580 is about 3541.9740258788. The cubic root of 12545580 is about 232.3611843342.

The spelling of 12545580 in words is "twelve million, five hundred forty-five thousand, five hundred eighty".