25140543 has 8 divisors (see below), whose sum is σ = 33980208. Its totient is φ = 16530624.

The previous prime is 25140527. The next prime is 25140589. The reversal of 25140543 is 34504152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25140543 - 2⁴ = 25140527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57180 + ... + 57617.

It is an arithmetic number, because the mean of its divisors is an integer number (4247526).

Almost surely, 2^25140543 is an apocalyptic number.

25140543 is a deficient number, since it is larger than the sum of its proper divisors (8839665).

25140543 is a wasteful number, since it uses less digits than its factorization.

25140543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114873.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25140543 is about 5014.0346029919. The cubic root of 25140543 is about 292.9486838729.

Adding to 25140543 its reverse (34504152), we get a palindrome (59644695).

The spelling of 25140543 in words is "twenty-five million, one hundred forty thousand, five hundred forty-three".