25611652422 has 12 divisors (see below), whose sum is σ = 55491913620. Its totient is φ = 8537217468.

The previous prime is 25611652373. The next prime is 25611652427. The reversal of 25611652422 is 22425611652.

25611652422 is a `hidden beast` number, since 2 + 561 + 1 + 6 + 52 + 42 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25611652427) 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 5 ways as a sum of consecutive naturals, for example, 711434772 + ... + 711434807.

It is an arithmetic number, because the mean of its divisors is an integer number (4624326135).

Almost surely, 2^25611652422 is an apocalyptic number.

25611652422 is an abundant number, since it is smaller than the sum of its proper divisors (29880261198).

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

25611652422 is a wasteful number, since it uses less digits than its factorization.

25611652422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422869587 (or 1422869584 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The spelling of 25611652422 in words is "twenty-five billion, six hundred eleven million, six hundred fifty-two thousand, four hundred twenty-two".