13880725 has 12 divisors (see below), whose sum is σ = 17471104. Its totient is φ = 10937520.

The previous prime is 13880723. The next prime is 13880729. The reversal of 13880725 is 52708831.

It is not a de Polignac number, because 13880725 - 2¹ = 13880723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13880723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2469 + ... + 5818.

Almost surely, 2^13880725 is an apocalyptic number.

It is an amenable number.

13880725 is a deficient number, since it is larger than the sum of its proper divisors (3590379).

13880725 is an equidigital number, since it uses as much as digits as its factorization.

13880725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8364 (or 8359 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 13880725 is about 3725.6845008669. The cubic root of 13880725 is about 240.3278216926.

The spelling of 13880725 in words is "thirteen million, eight hundred eighty thousand, seven hundred twenty-five".