25376389 has 2 divisors, whose sum is σ = 25376390. Its totient is φ = 25376388.

The previous prime is 25376371. The next prime is 25376401. The reversal of 25376389 is 98367352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20775364 + 4601025 = 4558^2 + 2145^2 .

It is a cyclic number.

It is not a de Polignac number, because 25376389 - 2⁷ = 25376261 is a prime.

It is a super-2 number, since 2×25376389² = 1287922237358642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25376489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12688194 + 12688195.

It is an arithmetic number, because the mean of its divisors is an integer number (12688195).

Almost surely, 2^25376389 is an apocalyptic number.

It is an amenable number.

25376389 is a deficient number, since it is larger than the sum of its proper divisors (1).

25376389 is an equidigital number, since it uses as much as digits as its factorization.

25376389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 43.

The square root of 25376389 is about 5037.4982878409. The cubic root of 25376389 is about 293.8618946588.

The spelling of 25376389 in words is "twenty-five million, three hundred seventy-six thousand, three hundred eighty-nine".