12500320 has 48 divisors (see below), whose sum is σ = 33753888. Its totient is φ = 4285440.

The previous prime is 12500263. The next prime is 12500329. The reversal of 12500320 is 2300521.

It is a self number, because there is not a number n which added to its sum of digits gives 12500320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4461 + ... + 6700.

It is an arithmetic number, because the mean of its divisors is an integer number (703206).

Almost surely, 2^12500320 is an apocalyptic number.

12500320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12500320 is an abundant number, since it is smaller than the sum of its proper divisors (21253568).

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

12500320 is a wasteful number, since it uses less digits than its factorization.

12500320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11183 (or 11175 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 12500320 is about 3535.5791604771. The cubic root of 12500320 is about 232.0814220750.

Adding to 12500320 its reverse (2300521), we get a palindrome (14800841).

It can be divided in two parts, 12500 and 320, that multiplied together give a square (4000000 = 2000²).

The spelling of 12500320 in words is "twelve million, five hundred thousand, three hundred twenty".