13025025431 has 4 divisors (see below), whose sum is σ = 14209118664. Its totient is φ = 11840932200.

The previous prime is 13025025421. The next prime is 13025025449. The reversal of 13025025431 is 13452052031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13025025431 - 2⁶ = 13025025367 is a prime.

It is a super-2 number, since 2×13025025431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13025025431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13025025401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592046600 + ... + 592046621.

It is an arithmetic number, because the mean of its divisors is an integer number (3552279666).

Almost surely, 2^13025025431 is an apocalyptic number.

13025025431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13025025431 is a deficient number, since it is larger than the sum of its proper divisors (1184093233).

13025025431 is a wasteful number, since it uses less digits than its factorization.

13025025431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184093232.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 13025025431 its reverse (13452052031), we get a palindrome (26477077462).

The spelling of 13025025431 in words is "thirteen billion, twenty-five million, twenty-five thousand, four hundred thirty-one".