13025631 has 4 divisors (see below), whose sum is σ = 17367512. Its totient is φ = 8683752.

The previous prime is 13025581. The next prime is 13025647. The reversal of 13025631 is 13652031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13652031 = 3 ⋅4550677.

It is not a de Polignac number, because 13025631 - 2⁷ = 13025503 is a prime.

It is a super-2 number, since 2×13025631² = 339334125896322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13025598 and 13025607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13025681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2170936 + ... + 2170941.

It is an arithmetic number, because the mean of its divisors is an integer number (4341878).

Almost surely, 2^13025631 is an apocalyptic number.

13025631 is a deficient number, since it is larger than the sum of its proper divisors (4341881).

13025631 is an equidigital number, since it uses as much as digits as its factorization.

13025631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341880.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 13025631 is about 3609.1039054037. The cubic root of 13025631 is about 235.2878982461.

Adding to 13025631 its reverse (13652031), we get a palindrome (26677662).

The spelling of 13025631 in words is "thirteen million, twenty-five thousand, six hundred thirty-one".