25535432422 has 4 divisors (see below), whose sum is σ = 38303148636. Its totient is φ = 12767716210.

The previous prime is 25535432411. The next prime is 25535432443. The reversal of 25535432422 is 22423453552.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6383858104 + ... + 6383858107.

It is an arithmetic number, because the mean of its divisors is an integer number (9575787159).

Almost surely, 2^25535432422 is an apocalyptic number.

25535432422 is a deficient number, since it is larger than the sum of its proper divisors (12767716214).

25535432422 is a wasteful number, since it uses less digits than its factorization.

25535432422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12767716213.

The product of its digits is 288000, while the sum is 37.

Adding to 25535432422 its reverse (22423453552), we get a palindrome (47958885974).

The spelling of 25535432422 in words is "twenty-five billion, five hundred thirty-five million, four hundred thirty-two thousand, four hundred twenty-two".