25132261 has 24 divisors (see below), whose sum is σ = 32808384. Its totient is φ = 18701760.

The previous prime is 25132259. The next prime is 25132291. The reversal of 25132261 is 16223152.

It is not a de Polignac number, because 25132261 - 2¹ = 25132259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25132291) 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, 40425 + ... + 41041.

It is an arithmetic number, because the mean of its divisors is an integer number (1367016).

Almost surely, 2^25132261 is an apocalyptic number.

It is an amenable number.

25132261 is a deficient number, since it is larger than the sum of its proper divisors (7676123).

25132261 is a wasteful number, since it uses less digits than its factorization.

25132261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 658 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 25132261 is about 5013.2086531482. The cubic root of 25132261 is about 292.9165118356.

It can be divided in two parts, 2513 and 2261, that added together give a palindrome (4774).

The spelling of 25132261 in words is "twenty-five million, one hundred thirty-two thousand, two hundred sixty-one".