25163389 has 2 divisors, whose sum is σ = 25163390. Its totient is φ = 25163388.

The previous prime is 25163371. The next prime is 25163407. The reversal of 25163389 is 98336152.

It is a balanced prime because it is at equal distance from previous prime (25163371) and next prime (25163407).

It can be written as a sum of positive squares in only one way, i.e., 13032100 + 12131289 = 3610^2 + 3483^2 .

It is a cyclic number.

It is not a de Polignac number, because 25163389 - 2¹³ = 25155197 is a prime.

It is a super-2 number, since 2×25163389² = 1266392291930642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25163339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12581694 + 12581695.

It is an arithmetic number, because the mean of its divisors is an integer number (12581695).

Almost surely, 2^25163389 is an apocalyptic number.

It is an amenable number.

25163389 is a deficient number, since it is larger than the sum of its proper divisors (1).

25163389 is an equidigital number, since it uses as much as digits as its factorization.

25163389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The square root of 25163389 is about 5016.3122909165. The cubic root of 25163389 is about 293.0373942264.

It can be divided in two parts, 25163 and 389, that added together give a palindrome (25552).

The spelling of 25163389 in words is "twenty-five million, one hundred sixty-three thousand, three hundred eighty-nine".