25504263 has 12 divisors (see below), whose sum is σ = 38441520. Its totient is φ = 16263456.

The previous prime is 25504261. The next prime is 25504273. The reversal of 25504263 is 36240552.

It is not a de Polignac number, because 25504263 - 2¹ = 25504261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25504261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61398 + ... + 61811.

It is an arithmetic number, because the mean of its divisors is an integer number (3203460).

Almost surely, 2^25504263 is an apocalyptic number.

25504263 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25504263 is a deficient number, since it is larger than the sum of its proper divisors (12937257).

25504263 is a wasteful number, since it uses less digits than its factorization.

25504263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123238 (or 123235 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25504263 is about 5050.1745514388. The cubic root of 25504263 is about 294.3546670744.

The spelling of 25504263 in words is "twenty-five million, five hundred four thousand, two hundred sixty-three".