13901602725 has 60 divisors (see below), whose sum is σ = 25792461156. Its totient is φ = 7402129920.

The previous prime is 13901602697. The next prime is 13901602727. The reversal of 13901602725 is 52720610931.

It can be written as a sum of positive squares in 6 ways, for example, as 5343317604 + 8558285121 = 73098^2 + 92511^2 .

It is not a de Polignac number, because 13901602725 - 2¹² = 13901598629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13901602725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13901602727) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1317069 + ... + 1327581.

Almost surely, 2^13901602725 is an apocalyptic number.

13901602725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13901602725 is a deficient number, since it is larger than the sum of its proper divisors (11890858431).

13901602725 is a wasteful number, since it uses less digits than its factorization.

13901602725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11188 (or 11174 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 13901602725 in words is "thirteen billion, nine hundred one million, six hundred two thousand, seven hundred twenty-five".