25506627422 has 16 divisors (see below), whose sum is σ = 38569574400. Its totient is φ = 12650146488.

The previous prime is 25506627401. The next prime is 25506627427. The reversal of 25506627422 is 22472660552.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25506627422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25506627427) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1670579 + ... + 1685777.

It is an arithmetic number, because the mean of its divisors is an integer number (2410598400).

Almost surely, 2^25506627422 is an apocalyptic number.

25506627422 is a deficient number, since it is larger than the sum of its proper divisors (13062946978).

25506627422 is a wasteful number, since it uses less digits than its factorization.

25506627422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21935.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 25506627422 in words is "twenty-five billion, five hundred six million, six hundred twenty-seven thousand, four hundred twenty-two".