12725820 has 108 divisors (see below), whose sum is σ = 41310360. Its totient is φ = 3162240.

The previous prime is 12725819. The next prime is 12725821. The reversal of 12725820 is 2852721.

12725820 is a `hidden beast` number, since 12 + 72 + 582 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12725819) and next prime (12725821).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12725821) 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 35 ways as a sum of consecutive naturals, for example, 208590 + ... + 208650.

Almost surely, 2^12725820 is an apocalyptic number.

12725820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12725820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20655180).

12725820 is an abundant number, since it is smaller than the sum of its proper divisors (28584540).

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

12725820 is a wasteful number, since it uses less digits than its factorization.

12725820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12725820 is about 3567.3267302001. The cubic root of 12725820 is about 233.4686607274.

The spelling of 12725820 in words is "twelve million, seven hundred twenty-five thousand, eight hundred twenty".