25496491 has 8 divisors (see below), whose sum is σ = 25974000. Its totient is φ = 25022592.

The previous prime is 25496483. The next prime is 25496503. The reversal of 25496491 is 19469452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25496491 - 2³ = 25496483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25496431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16260 + ... + 17758.

It is an arithmetic number, because the mean of its divisors is an integer number (3246750).

Almost surely, 2^25496491 is an apocalyptic number.

25496491 is a deficient number, since it is larger than the sum of its proper divisors (477509).

25496491 is a wasteful number, since it uses less digits than its factorization.

25496491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805.

The product of its digits is 77760, while the sum is 40.

The square root of 25496491 is about 5049.4050144547. The cubic root of 25496491 is about 294.3247641402.

The spelling of 25496491 in words is "twenty-five million, four hundred ninety-six thousand, four hundred ninety-one".