13579725 has 12 divisors (see below), whose sum is σ = 22451936. Its totient is φ = 7242480.

The previous prime is 13579721. The next prime is 13579781. The reversal of 13579725 is 52797531.

It is not a de Polignac number, because 13579725 - 2² = 13579721 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 (13579721) 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, 90457 + ... + 90606.

Almost surely, 2^13579725 is an apocalyptic number.

13579725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13579725 is a deficient number, since it is larger than the sum of its proper divisors (8872211).

13579725 is a wasteful number, since it uses less digits than its factorization.

13579725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181076 (or 181071 counting only the distinct ones).

The product of its digits is 66150, while the sum is 39.

The square root of 13579725 is about 3685.0678419807. The cubic root of 13579725 is about 238.5779623733.

The spelling of 13579725 in words is "thirteen million, five hundred seventy-nine thousand, seven hundred twenty-five".