25494523 has 8 divisors (see below), whose sum is σ = 27277520. Its totient is φ = 23755680.

The previous prime is 25494481. The next prime is 25494527. The reversal of 25494523 is 32549452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25494523 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25494527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9840 + ... + 12157.

It is an arithmetic number, because the mean of its divisors is an integer number (3409690).

Almost surely, 2^25494523 is an apocalyptic number.

25494523 is a deficient number, since it is larger than the sum of its proper divisors (1782997).

25494523 is a wasteful number, since it uses less digits than its factorization.

25494523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22077.

The product of its digits is 43200, while the sum is 34.

The square root of 25494523 is about 5049.2101362490. The cubic root of 25494523 is about 294.3171912545.

The spelling of 25494523 in words is "twenty-five million, four hundred ninety-four thousand, five hundred twenty-three".