25264261 has 16 divisors (see below), whose sum is σ = 29393280. Its totient is φ = 21460480.

The previous prime is 25264247. The next prime is 25264277. The reversal of 25264261 is 16246252.

It is a cyclic number.

It is not a de Polignac number, because 25264261 - 2¹¹ = 25262213 is a prime.

It is a super-2 number, since 2×25264261² = 1276565767752242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25264231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30825 + ... + 31633.

It is an arithmetic number, because the mean of its divisors is an integer number (1837080).

Almost surely, 2^25264261 is an apocalyptic number.

It is an amenable number.

25264261 is a deficient number, since it is larger than the sum of its proper divisors (4129019).

25264261 is a wasteful number, since it uses less digits than its factorization.

25264261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its digits is 5760, while the sum is 28.

The square root of 25264261 is about 5026.3566327908. The cubic root of 25264261 is about 293.4284366500.

Subtracting from 25264261 its reverse (16246252), we obtain a square (9018009 = 3003²).

The spelling of 25264261 in words is "twenty-five million, two hundred sixty-four thousand, two hundred sixty-one".