25852531 has 4 divisors (see below), whose sum is σ = 25908832. Its totient is φ = 25796232.

The previous prime is 25852523. The next prime is 25852549. The reversal of 25852531 is 13525852.

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 25852531 - 2³ = 25852523 is a prime.

It is a super-2 number, since 2×25852531² = 1336706718211922, 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 = 25852493 and 25852502.

It is not an unprimeable number, because it can be changed into a prime (25852571) 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, 27456 + ... + 28381.

It is an arithmetic number, because the mean of its divisors is an integer number (6477208).

Almost surely, 2^25852531 is an apocalyptic number.

25852531 is a deficient number, since it is larger than the sum of its proper divisors (56301).

25852531 is an equidigital number, since it uses as much as digits as its factorization.

25852531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56300.

The product of its digits is 12000, while the sum is 31.

The square root of 25852531 is about 5084.5384254620. The cubic root of 25852531 is about 295.6884466920.

The spelling of 25852531 in words is "twenty-five million, eight hundred fifty-two thousand, five hundred thirty-one".