25252555122 has 24 divisors (see below), whose sum is σ = 54731433276. Its totient is φ = 8414816256.

The previous prime is 25252555121. The next prime is 25252555147. The reversal of 25252555122 is 22155525252.

25252555122 is a `hidden beast` number, since 2 + 5 + 2 + 525 + 5 + 5 + 122 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24333192081 + 919363041 = 155991^2 + 30321^2 .

It is not an unprimeable number, because it can be changed into a prime (25252555121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167143 + ... + 280074.

Almost surely, 2^25252555122 is an apocalyptic number.

25252555122 is an abundant number, since it is smaller than the sum of its proper divisors (29478878154).

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

25252555122 is a wasteful number, since it uses less digits than its factorization.

25252555122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450362 (or 450359 counting only the distinct ones).

The product of its digits is 100000, while the sum is 36.

The spelling of 25252555122 in words is "twenty-five billion, two hundred fifty-two million, five hundred fifty-five thousand, one hundred twenty-two".