25233143442 has 16 divisors (see below), whose sum is σ = 54348309120. Its totient is φ = 7764044112.

The previous prime is 25233143417. The next prime is 25233143519. The reversal of 25233143442 is 24434133252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161750842 + ... + 161750997.

It is an arithmetic number, because the mean of its divisors is an integer number (3396769320).

Almost surely, 2^25233143442 is an apocalyptic number.

25233143442 is an abundant number, since it is smaller than the sum of its proper divisors (29115165678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25233143442 is a wasteful number, since it uses less digits than its factorization.

25233143442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323501857.

The product of its digits is 69120, while the sum is 33.

Adding to 25233143442 its reverse (24434133252), we get a palindrome (49667276694).

The spelling of 25233143442 in words is "twenty-five billion, two hundred thirty-three million, one hundred forty-three thousand, four hundred forty-two".