25522330142 has 4 divisors (see below), whose sum is σ = 38283495216. Its totient is φ = 12761165070.

The previous prime is 25522330133. The next prime is 25522330199. The reversal of 25522330142 is 24103322552.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6380582534 + ... + 6380582537.

It is an arithmetic number, because the mean of its divisors is an integer number (9570873804).

Almost surely, 2^25522330142 is an apocalyptic number.

25522330142 is a deficient number, since it is larger than the sum of its proper divisors (12761165074).

25522330142 is a wasteful number, since it uses less digits than its factorization.

25522330142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12761165073.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 25522330142 its reverse (24103322552), we get a palindrome (49625652694).

The spelling of 25522330142 in words is "twenty-five billion, five hundred twenty-two million, three hundred thirty thousand, one hundred forty-two".