13431651025 has 27 divisors (see below), whose sum is σ = 18045092529. Its totient is φ = 9913194720.

The previous prime is 13431651007. The next prime is 13431651029. The reversal of 13431651025 is 52015613431.

The square root of 13431651025 is 115895.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3462027921 + 9969623104 = 58839^2 + 99848^2 .

It is not a de Polignac number, because 13431651025 - 2²⁷ = 13297433297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13431651029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7532284 + ... + 7534066.

Almost surely, 2^13431651025 is an apocalyptic number.

13431651025 is the 115895-th square number.

13431651025 is the 57948-th centered octagonal number.

It is an amenable number.

13431651025 is a deficient number, since it is larger than the sum of its proper divisors (4613441504).

13431651025 is an frugal number, since it uses more digits than its factorization.

13431651025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602 (or 1801 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 13431651025 in words is "thirteen billion, four hundred thirty-one million, six hundred fifty-one thousand, twenty-five".