25122622005 has 24 divisors (see below), whose sum is σ = 46895562168. Its totient is φ = 12368059776.

The previous prime is 25122621977. The next prime is 25122622067. The reversal of 25122622005 is 50022622152.

25122622005 is a `hidden beast` number, since 25 + 12 + 2 + 622 + 0 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 359822961 + 24762799044 = 18969^2 + 157362^2 .

It is not a de Polignac number, because 25122622005 - 2¹⁰ = 25122620981 is a prime.

It is a super-2 number, since 2×25122622005² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25122622005.

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 in 23 ways as a sum of consecutive naturals, for example, 21471742 + ... + 21472911.

It is an arithmetic number, because the mean of its divisors is an integer number (1953981757).

Almost surely, 2^25122622005 is an apocalyptic number.

It is an amenable number.

25122622005 is a deficient number, since it is larger than the sum of its proper divisors (21772940163).

25122622005 is a wasteful number, since it uses less digits than its factorization.

25122622005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42944677 (or 42944674 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 25122622005 in words is "twenty-five billion, one hundred twenty-two million, six hundred twenty-two thousand, five".