13040498025 has 81 divisors (see below), whose sum is σ = 24490644087. Its totient is φ = 6632445600.

The previous prime is 13040498017. The next prime is 13040498039. The reversal of 13040498025 is 52089404031.

The square root of 13040498025 is 114195.

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

It can be written as a sum of positive squares in only one way, i.e., 4694579289 + 8345918736 = 68517^2 + 91356^2 .

It is not a de Polignac number, because 13040498025 - 2³ = 13040498017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 39397110 + ... + 39397440.

Almost surely, 2^13040498025 is an apocalyptic number.

13040498025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13040498025 is the 114195-th square number.

13040498025 is the 57098-th centered octagonal number.

It is an amenable number.

13040498025 is a deficient number, since it is larger than the sum of its proper divisors (11450146062).

13040498025 is an equidigital number, since it uses as much as digits as its factorization.

13040498025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Multiplying 13040498025 by its sum of digits (36), we get a square (469457928900 = 685170²).

The spelling of 13040498025 in words is "thirteen billion, forty million, four hundred ninety-eight thousand, twenty-five".