25403043 has 16 divisors (see below), whose sum is σ = 36172800. Its totient is φ = 15822240.

The previous prime is 25403041. The next prime is 25403089. The reversal of 25403043 is 34030452.

It is a happy number.

It is not a de Polignac number, because 25403043 - 2¹ = 25403041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25403041) 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 15 ways as a sum of consecutive naturals, for example, 2013 + ... + 7406.

It is an arithmetic number, because the mean of its divisors is an integer number (2260800).

Almost surely, 2^25403043 is an apocalyptic number.

25403043 is a deficient number, since it is larger than the sum of its proper divisors (10769757).

25403043 is a wasteful number, since it uses less digits than its factorization.

25403043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9482.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 25403043 is about 5040.1431527289. The cubic root of 25403043 is about 293.9647442568.

Adding to 25403043 its reverse (34030452), we get a palindrome (59433495).

It can be divided in two parts, 2 and 5403043, that added together give a palindrome (5403045).

The spelling of 25403043 in words is "twenty-five million, four hundred three thousand, forty-three".