12505620 has 48 divisors (see below), whose sum is σ = 35195328. Its totient is φ = 3317760.

The previous prime is 12505613. The next prime is 12505627. The reversal of 12505620 is 2650521.

12505620 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12505613) and next prime (12505627).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505627) 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, 15015 + ... + 15825.

It is an arithmetic number, because the mean of its divisors is an integer number (733236).

Almost surely, 2^12505620 is an apocalyptic number.

12505620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12505620 is an abundant number, since it is smaller than the sum of its proper divisors (22689708).

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

12505620 is a wasteful number, since it uses less digits than its factorization.

12505620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 12505620 is about 3536.3286046407. The cubic root of 12505620 is about 232.1142174418.

The spelling of 12505620 in words is "twelve million, five hundred five thousand, six hundred twenty".