13725620 has 24 divisors (see below), whose sum is σ = 29256864. Its totient is φ = 5407776.

The previous prime is 13725617. The next prime is 13725637. The reversal of 13725620 is 2652731.

It is a self number, because there is not a number n which added to its sum of digits gives 13725620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3782 + ... + 6461.

It is an arithmetic number, because the mean of its divisors is an integer number (1219036).

Almost surely, 2^13725620 is an apocalyptic number.

13725620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13725620 is an abundant number, since it is smaller than the sum of its proper divisors (15531244).

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

13725620 is a wasteful number, since it uses less digits than its factorization.

13725620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10319 (or 10317 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 13725620 is about 3704.8103865110. The cubic root of 13725620 is about 239.4293153679.

The spelling of 13725620 in words is "thirteen million, seven hundred twenty-five thousand, six hundred twenty".