25135263 has 24 divisors (see below), whose sum is σ = 37559808. Its totient is φ = 16187472.

The previous prime is 25135259. The next prime is 25135267. The reversal of 25135263 is 36253152.

25135263 is a `hidden beast` number, since 251 + 352 + 63 = 666.

It is an interprime number because it is at equal distance from previous prime (25135259) and next prime (25135267).

It is not a de Polignac number, because 25135263 - 2² = 25135259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25135267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41106 + ... + 41712.

It is an arithmetic number, because the mean of its divisors is an integer number (1564992).

Almost surely, 2^25135263 is an apocalyptic number.

25135263 is a deficient number, since it is larger than the sum of its proper divisors (12424545).

25135263 is a wasteful number, since it uses less digits than its factorization.

25135263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 760 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 25135263 is about 5013.5080532497. The cubic root of 25135263 is about 292.9281741416.

It can be divided in two parts, 2513 and 5263, that added together give a 5-th power (7776 = 6⁵).

The spelling of 25135263 in words is "twenty-five million, one hundred thirty-five thousand, two hundred sixty-three".