25655706122 has 4 divisors (see below), whose sum is σ = 38483559186. Its totient is φ = 12827853060.

The previous prime is 25655706121. The next prime is 25655706149. The reversal of 25655706122 is 22160755652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14476661761 + 11179044361 = 120319^2 + 105731^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25655706122.

It is not an unprimeable number, because it can be changed into a prime (25655706121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6413926529 + ... + 6413926532.

Almost surely, 2^25655706122 is an apocalyptic number.

25655706122 is a deficient number, since it is larger than the sum of its proper divisors (12827853064).

25655706122 is a wasteful number, since it uses less digits than its factorization.

25655706122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12827853063.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 25655706122 in words is "twenty-five billion, six hundred fifty-five million, seven hundred six thousand, one hundred twenty-two".