25490893 has 2 divisors, whose sum is σ = 25490894. Its totient is φ = 25490892.

The previous prime is 25490867. The next prime is 25490909. The reversal of 25490893 is 39809452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17413929 + 8076964 = 4173^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 25490893 - 2¹³ = 25482701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25490813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12745446 + 12745447.

It is an arithmetic number, because the mean of its divisors is an integer number (12745447).

Almost surely, 2^25490893 is an apocalyptic number.

It is an amenable number.

25490893 is a deficient number, since it is larger than the sum of its proper divisors (1).

25490893 is an equidigital number, since it uses as much as digits as its factorization.

25490893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 25490893 is about 5048.8506612892. The cubic root of 25490893 is about 294.3032219519.

The spelling of 25490893 in words is "twenty-five million, four hundred ninety thousand, eight hundred ninety-three".