25598761 has 2 divisors, whose sum is σ = 25598762. Its totient is φ = 25598760.

The previous prime is 25598723. The next prime is 25598789. The reversal of 25598761 is 16789552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24443136 + 1155625 = 4944^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 25598761 - 2⁷ = 25598633 is a prime.

It is not a weakly prime, because it can be changed into another prime (25598161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12799380 + 12799381.

It is an arithmetic number, because the mean of its divisors is an integer number (12799381).

Almost surely, 2^25598761 is an apocalyptic number.

It is an amenable number.

25598761 is a deficient number, since it is larger than the sum of its proper divisors (1).

25598761 is an equidigital number, since it uses as much as digits as its factorization.

25598761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 43.

The square root of 25598761 is about 5059.5218153497. The cubic root of 25598761 is about 294.7177651114.

The spelling of 25598761 in words is "twenty-five million, five hundred ninety-eight thousand, seven hundred sixty-one".