25611461 has 4 divisors (see below), whose sum is σ = 25783500. Its totient is φ = 25439424.

The previous prime is 25611457. The next prime is 25611463. The reversal of 25611461 is 16411652.

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 8850625 + 16760836 = 2975^2 + 4094^2 .

It is a cyclic number.

It is not a de Polignac number, because 25611461 - 2² = 25611457 is a prime.

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 25611461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25611463) 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, 85796 + ... + 86093.

It is an arithmetic number, because the mean of its divisors is an integer number (6445875).

Almost surely, 2^25611461 is an apocalyptic number.

It is an amenable number.

25611461 is a deficient number, since it is larger than the sum of its proper divisors (172039).

25611461 is a wasteful number, since it uses less digits than its factorization.

25611461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172038.

The product of its digits is 1440, while the sum is 26.

The square root of 25611461 is about 5060.7767190422. The cubic root of 25611461 is about 294.7664952929.

The spelling of 25611461 in words is "twenty-five million, six hundred eleven thousand, four hundred sixty-one".