25064261 has 4 divisors (see below), whose sum is σ = 25312524. Its totient is φ = 24816000.

The previous prime is 25064233. The next prime is 25064267. The reversal of 25064261 is 16246052.

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 23951236 + 1113025 = 4894^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 25064261 - 2¹⁸ = 24802117 is a prime.

It is a super-2 number, since 2×25064261² = 1256434358952242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25064261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25064267) 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, 123980 + ... + 124181.

It is an arithmetic number, because the mean of its divisors is an integer number (6328131).

Almost surely, 2^25064261 is an apocalyptic number.

It is an amenable number.

25064261 is a deficient number, since it is larger than the sum of its proper divisors (248263).

25064261 is a wasteful number, since it uses less digits than its factorization.

25064261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248262.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25064261 is about 5006.4219758227. The cubic root of 25064261 is about 292.6520932052.

The spelling of 25064261 in words is "twenty-five million, sixty-four thousand, two hundred sixty-one".