13725440325 has 72 divisors (see below), whose sum is σ = 25838554560. Its totient is φ = 6951225600.

The previous prime is 13725440293. The next prime is 13725440347. The reversal of 13725440325 is 52304452731.

13725440325 is a `hidden beast` number, since 13 + 72 + 544 + 0 + 32 + 5 = 666.

It is not a de Polignac number, because 13725440325 - 2⁵ = 13725440293 is a prime.

It is a super-2 number, since 2×13725440325² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13725440325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 709785 + ... + 728865.

Almost surely, 2^13725440325 is an apocalyptic number.

13725440325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13725440325 is a deficient number, since it is larger than the sum of its proper divisors (12113114235).

13725440325 is a wasteful number, since it uses less digits than its factorization.

13725440325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19259 (or 19251 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The spelling of 13725440325 in words is "thirteen billion, seven hundred twenty-five million, four hundred forty thousand, three hundred twenty-five".