25956523 has 4 divisors (see below), whose sum is σ = 26088480. Its totient is φ = 25824568.

The previous prime is 25956503. The next prime is 25956529. The reversal of 25956523 is 32565952.

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 25956523 - 2⁹ = 25956011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25956529) 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, 65683 + ... + 66076.

It is an arithmetic number, because the mean of its divisors is an integer number (6522120).

Almost surely, 2^25956523 is an apocalyptic number.

25956523 is a deficient number, since it is larger than the sum of its proper divisors (131957).

25956523 is a wasteful number, since it uses less digits than its factorization.

25956523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131956.

The product of its digits is 81000, while the sum is 37.

The square root of 25956523 is about 5094.7544592453. The cubic root of 25956523 is about 296.0843859415.

The spelling of 25956523 in words is "twenty-five million, nine hundred fifty-six thousand, five hundred twenty-three".