25496523 has 18 divisors (see below), whose sum is σ = 39881556. Its totient is φ = 15689232.

The previous prime is 25496503. The next prime is 25496533. The reversal of 25496523 is 32569452.

It is not a de Polignac number, because 25496523 - 2⁸ = 25496267 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (25496503) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6861 + ... + 9902.

It is an arithmetic number, because the mean of its divisors is an integer number (2215642).

Almost surely, 2^25496523 is an apocalyptic number.

25496523 is a deficient number, since it is larger than the sum of its proper divisors (14385033).

25496523 is a wasteful number, since it uses less digits than its factorization.

25496523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16795 (or 16779 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 25496523 is about 5049.4081831438. The cubic root of 25496523 is about 294.3248872733.

The spelling of 25496523 in words is "twenty-five million, four hundred ninety-six thousand, five hundred twenty-three".