13249519725 has 144 divisors (see below), whose sum is σ = 25304666112. Its totient is φ = 6100174080.

The previous prime is 13249519693. The next prime is 13249519733. The reversal of 13249519725 is 52791594231.

It is not a de Polignac number, because 13249519725 - 2⁵ = 13249519693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 13701192 + ... + 13702158.

It is an arithmetic number, because the mean of its divisors is an integer number (175726848).

Almost surely, 2^13249519725 is an apocalyptic number.

13249519725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13249519725 is a deficient number, since it is larger than the sum of its proper divisors (12055146387).

13249519725 is a wasteful number, since it uses less digits than its factorization.

13249519725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076 (or 1058 counting only the distinct ones).

The product of its digits is 680400, while the sum is 48.

The spelling of 13249519725 in words is "thirteen billion, two hundred forty-nine million, five hundred nineteen thousand, seven hundred twenty-five".