25313535 has 24 divisors (see below), whose sum is σ = 47253024. Its totient is φ = 12461760.

The previous prime is 25313531. The next prime is 25313539. The reversal of 25313535 is 53531352.

It is an interprime number because it is at equal distance from previous prime (25313531) and next prime (25313539).

It is not a de Polignac number, because 25313535 - 2² = 25313531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25313499 and 25313508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25313531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21051 + ... + 22220.

It is an arithmetic number, because the mean of its divisors is an integer number (1968876).

Almost surely, 2^25313535 is an apocalyptic number.

25313535 is a deficient number, since it is larger than the sum of its proper divisors (21939489).

25313535 is a wasteful number, since it uses less digits than its factorization.

25313535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43295 (or 43292 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 25313535 is about 5031.2558074501. The cubic root of 25313535 is about 293.6190748978.

Adding to 25313535 its reverse (53531352), we get a palindrome (78844887).

The spelling of 25313535 in words is "twenty-five million, three hundred thirteen thousand, five hundred thirty-five".