25654261 has 4 divisors (see below), whose sum is σ = 25749900. Its totient is φ = 25558624.

The previous prime is 25654253. The next prime is 25654301. The reversal of 25654261 is 16245652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1703025 + 23951236 = 1305^2 + 4894^2 .

It is a cyclic number.

It is not a de Polignac number, because 25654261 - 2³ = 25654253 is a prime.

It is a super-2 number, since 2×25654261² = 1316282214912242, 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 (25654231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47416 + ... + 47953.

It is an arithmetic number, because the mean of its divisors is an integer number (6437475).

Almost surely, 2^25654261 is an apocalyptic number.

It is an amenable number.

25654261 is a deficient number, since it is larger than the sum of its proper divisors (95639).

25654261 is an equidigital number, since it uses as much as digits as its factorization.

25654261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95638.

The product of its digits is 14400, while the sum is 31.

The square root of 25654261 is about 5065.0035537993. The cubic root of 25654261 is about 294.9306013139.

The spelling of 25654261 in words is "twenty-five million, six hundred fifty-four thousand, two hundred sixty-one".