25795449 has 16 divisors (see below), whose sum is σ = 38865600. Its totient is φ = 16904448.

The previous prime is 25795439. The next prime is 25795463. The reversal of 25795449 is 94459752.

25795449 = 632² + 633² + ... + 690².

It is not a de Polignac number, because 25795449 - 2¹⁹ = 25271161 is a prime.

It is a super-2 number, since 2×25795449² = 1330810378223202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25795439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6504 + ... + 9689.

It is an arithmetic number, because the mean of its divisors is an integer number (2429100).

Almost surely, 2^25795449 is an apocalyptic number.

It is an amenable number.

25795449 is a deficient number, since it is larger than the sum of its proper divisors (13070151).

25795449 is a wasteful number, since it uses less digits than its factorization.

25795449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16261 (or 16255 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 25795449 is about 5078.9220312976. The cubic root of 25795449 is about 295.4706611084.

It can be divided in two parts, 25795 and 449, that added together give a square (26244 = 162²).

The spelling of 25795449 in words is "twenty-five million, seven hundred ninety-five thousand, four hundred forty-nine".