25543413 has 24 divisors (see below), whose sum is σ = 42318848. Its totient is φ = 14543712.

The previous prime is 25543393. The next prime is 25543439. The reversal of 25543413 is 31434552.

It is not a de Polignac number, because 25543413 - 2⁵ = 25543381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25543493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22956 + ... + 24042.

Almost surely, 2^25543413 is an apocalyptic number.

It is an amenable number.

25543413 is a deficient number, since it is larger than the sum of its proper divisors (16775435).

25543413 is a wasteful number, since it uses less digits than its factorization.

25543413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473 (or 1470 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 25543413 is about 5054.0491687359. The cubic root of 25543413 is about 294.5052052237.

Adding to 25543413 its reverse (31434552), we get a palindrome (56977965).

The spelling of 25543413 in words is "twenty-five million, five hundred forty-three thousand, four hundred thirteen".