25843142 has 24 divisors (see below), whose sum is σ = 42330096. Its totient is φ = 11827296.

The previous prime is 25843141. The next prime is 25843157. The reversal of 25843142 is 24134852.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25843141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52823 + ... + 53309.

It is an arithmetic number, because the mean of its divisors is an integer number (1763754).

Almost surely, 2^25843142 is an apocalyptic number.

25843142 is a deficient number, since it is larger than the sum of its proper divisors (16486954).

25843142 is a wasteful number, since it uses less digits than its factorization.

25843142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 659 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 25843142 is about 5083.6150523028. The cubic root of 25843142 is about 295.6526467804.

Adding to 25843142 its reverse (24134852), we get a palindrome (49977994).

The spelling of 25843142 in words is "twenty-five million, eight hundred forty-three thousand, one hundred forty-two".