25243263 has 6 divisors (see below), whose sum is σ = 36462504. Its totient is φ = 16828836.

The previous prime is 25243261. The next prime is 25243271. The reversal of 25243263 is 36234252.

It is not a de Polignac number, because 25243263 - 2¹ = 25243261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25243261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1402395 + ... + 1402412.

It is an arithmetic number, because the mean of its divisors is an integer number (6077084).

Almost surely, 2^25243263 is an apocalyptic number.

25243263 is a deficient number, since it is larger than the sum of its proper divisors (11219241).

25243263 is a wasteful number, since it uses less digits than its factorization.

25243263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804813 (or 2804810 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 25243263 is about 5024.2674092847. The cubic root of 25243263 is about 293.3471212814.

The spelling of 25243263 in words is "twenty-five million, two hundred forty-three thousand, two hundred sixty-three".