25576261 has 4 divisors (see below), whose sum is σ = 26922400. Its totient is φ = 24230124.

The previous prime is 25576249. The next prime is 25576267. The reversal of 25576261 is 16267552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25576261 - 2⁹ = 25575749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25576267) 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, 673041 + ... + 673078.

It is an arithmetic number, because the mean of its divisors is an integer number (6730600).

Almost surely, 2^25576261 is an apocalyptic number.

It is an amenable number.

25576261 is a deficient number, since it is larger than the sum of its proper divisors (1346139).

25576261 is a wasteful number, since it uses less digits than its factorization.

25576261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346138.

The product of its digits is 25200, while the sum is 34.

The square root of 25576261 is about 5057.2977962544. The cubic root of 25576261 is about 294.6313925264.

The spelling of 25576261 in words is "twenty-five million, five hundred seventy-six thousand, two hundred sixty-one".