25245389 has 6 divisors (see below), whose sum is σ = 27336906. Its totient is φ = 23303280.

The previous prime is 25245383. The next prime is 25245427. The reversal of 25245389 is 98354252.

It can be written as a sum of positive squares in 3 ways, for example, as 2301289 + 22944100 = 1517^2 + 4790^2 .

It is not a de Polignac number, because 25245389 - 2⁴ = 25245373 is a prime.

It is a super-2 number, since 2×25245389² = 1274659331522642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25245383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74522 + ... + 74859.

It is an arithmetic number, because the mean of its divisors is an integer number (4556151).

Almost surely, 2^25245389 is an apocalyptic number.

It is an amenable number.

25245389 is a deficient number, since it is larger than the sum of its proper divisors (2091517).

25245389 is a wasteful number, since it uses less digits than its factorization.

25245389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149407 (or 149394 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 25245389 is about 5024.4789779638. The cubic root of 25245389 is about 293.3553563297.

The spelling of 25245389 in words is "twenty-five million, two hundred forty-five thousand, three hundred eighty-nine".