25326761 has 2 divisors, whose sum is σ = 25326762. Its totient is φ = 25326760.

The previous prime is 25326757. The next prime is 25326767. The reversal of 25326761 is 16762352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15523600 + 9803161 = 3940^2 + 3131^2 .

It is a cyclic number.

It is not a de Polignac number, because 25326761 - 2² = 25326757 is a prime.

It is a super-2 number, since 2×25326761² = 1282889645502242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25326767) 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, 12663380 + 12663381.

It is an arithmetic number, because the mean of its divisors is an integer number (12663381).

Almost surely, 2^25326761 is an apocalyptic number.

It is an amenable number.

25326761 is a deficient number, since it is larger than the sum of its proper divisors (1).

25326761 is an equidigital number, since it uses as much as digits as its factorization.

25326761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 25326761 is about 5032.5700193837. The cubic root of 25326761 is about 293.6702034046.

The spelling of 25326761 in words is "twenty-five million, three hundred twenty-six thousand, seven hundred sixty-one".