13725586 has 12 divisors (see below), whose sum is σ = 23949918. Its totient is φ = 5882352.

The previous prime is 13725559. The next prime is 13725587. The reversal of 13725586 is 68552731.

It can be written as a sum of positive squares in only one way, i.e., 13505625 + 219961 = 3675^2 + 469^2 .

It is a super-2 number, since 2×13725586² = 376783422086792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13725587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69931 + ... + 70126.

Almost surely, 2^13725586 is an apocalyptic number.

13725586 is a deficient number, since it is larger than the sum of its proper divisors (10224332).

13725586 is a wasteful number, since it uses less digits than its factorization.

13725586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140073 (or 140066 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 13725586 is about 3704.8057978793. The cubic root of 13725586 is about 239.4291176694.

The spelling of 13725586 in words is "thirteen million, seven hundred twenty-five thousand, five hundred eighty-six".