25236422006 has 4 divisors (see below), whose sum is σ = 37854633012. Its totient is φ = 12618211002.

The previous prime is 25236421981. The next prime is 25236422017. The reversal of 25236422006 is 60022463252.

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, 6309105500 + ... + 6309105503.

It is an arithmetic number, because the mean of its divisors is an integer number (9463658253).

Almost surely, 2^25236422006 is an apocalyptic number.

25236422006 is a deficient number, since it is larger than the sum of its proper divisors (12618211006).

25236422006 is a wasteful number, since it uses less digits than its factorization.

25236422006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12618211005.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 25236422006 its reverse (60022463252), we get a palindrome (85258885258).

The spelling of 25236422006 in words is "twenty-five billion, two hundred thirty-six million, four hundred twenty-two thousand, six".