25606126422 has 24 divisors (see below), whose sum is σ = 55537115400. Its totient is φ = 8526579360.

The previous prime is 25606126411. The next prime is 25606126453. The reversal of 25606126422 is 22462160652.

25606126422 is a `hidden beast` number, since 2 + 5 + 6 + 0 + 6 + 1 + 2 + 642 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 715047 + ... + 750002.

It is an arithmetic number, because the mean of its divisors is an integer number (2314046475).

Almost surely, 2^25606126422 is an apocalyptic number.

25606126422 is an abundant number, since it is smaller than the sum of its proper divisors (29930988978).

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

25606126422 is a wasteful number, since it uses less digits than its factorization.

25606126422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466028 (or 1466025 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 25606126422 in words is "twenty-five billion, six hundred six million, one hundred twenty-six thousand, four hundred twenty-two".