25232681 has 2 divisors, whose sum is σ = 25232682. Its totient is φ = 25232680.

The previous prime is 25232677. The next prime is 25232723. The reversal of 25232681 is 18623252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22477081 + 2755600 = 4741^2 + 1660^2 .

It is a cyclic number.

It is not a de Polignac number, because 25232681 - 2² = 25232677 is a prime.

It is a super-2 number, since 2×25232681² = 1273376380895522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25232621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12616340 + 12616341.

It is an arithmetic number, because the mean of its divisors is an integer number (12616341).

Almost surely, 2^25232681 is an apocalyptic number.

It is an amenable number.

25232681 is a deficient number, since it is larger than the sum of its proper divisors (1).

25232681 is an equidigital number, since it uses as much as digits as its factorization.

25232681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 25232681 is about 5023.2142100452. The cubic root of 25232681 is about 293.3061250877.

The spelling of 25232681 in words is "twenty-five million, two hundred thirty-two thousand, six hundred eighty-one".