25748389 has 2 divisors, whose sum is σ = 25748390. Its totient is φ = 25748388.

The previous prime is 25748381. The next prime is 25748399. The reversal of 25748389 is 98384752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25553025 + 195364 = 5055^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 25748389 - 2³ = 25748381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25748381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12874194 + 12874195.

It is an arithmetic number, because the mean of its divisors is an integer number (12874195).

Almost surely, 2^25748389 is an apocalyptic number.

It is an amenable number.

25748389 is a deficient number, since it is larger than the sum of its proper divisors (1).

25748389 is an equidigital number, since it uses as much as digits as its factorization.

25748389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 46.

The square root of 25748389 is about 5074.2870435166. The cubic root of 25748389 is about 295.2908708196.

The spelling of 25748389 in words is "twenty-five million, seven hundred forty-eight thousand, three hundred eighty-nine".