25927961 has 2 divisors, whose sum is σ = 25927962. Its totient is φ = 25927960.

The previous prime is 25927933. The next prime is 25928033. The reversal of 25927961 is 16972952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13104400 + 12823561 = 3620^2 + 3581^2 .

It is a cyclic number.

It is not a de Polignac number, because 25927961 - 2¹⁴ = 25911577 is a prime.

It is not a weakly prime, because it can be changed into another prime (25927901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12963980 + 12963981.

It is an arithmetic number, because the mean of its divisors is an integer number (12963981).

Almost surely, 2^25927961 is an apocalyptic number.

It is an amenable number.

25927961 is a deficient number, since it is larger than the sum of its proper divisors (1).

25927961 is an equidigital number, since it uses as much as digits as its factorization.

25927961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 41.

The square root of 25927961 is about 5091.9506085586. The cubic root of 25927961 is about 295.9757444515.

The spelling of 25927961 in words is "twenty-five million, nine hundred twenty-seven thousand, nine hundred sixty-one".