25292389 has 2 divisors, whose sum is σ = 25292390. Its totient is φ = 25292388.

The previous prime is 25292357. The next prime is 25292419. The reversal of 25292389 is 98329252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21548164 + 3744225 = 4642^2 + 1935^2 .

It is a cyclic number.

It is not a de Polignac number, because 25292389 - 2⁵ = 25292357 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25292489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12646194 + 12646195.

It is an arithmetic number, because the mean of its divisors is an integer number (12646195).

Almost surely, 2^25292389 is an apocalyptic number.

It is an amenable number.

25292389 is a deficient number, since it is larger than the sum of its proper divisors (1).

25292389 is an equidigital number, since it uses as much as digits as its factorization.

25292389 is an odious number, because the sum of its binary digits is odd.

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

The square root of 25292389 is about 5029.1539049824. The cubic root of 25292389 is about 293.5372925806.

The spelling of 25292389 in words is "twenty-five million, two hundred ninety-two thousand, three hundred eighty-nine".