20252250868 has 12 divisors (see below), whose sum is σ = 35449825572. Its totient is φ = 10123729280.

The previous prime is 20252250839. The next prime is 20252250869. The reversal of 20252250868 is 86805225202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18813414244 + 1438836624 = 137162^2 + 37932^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20252250868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252250869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579955 + ... + 613882.

It is an arithmetic number, because the mean of its divisors is an integer number (2954152131).

Almost surely, 2^20252250868 is an apocalyptic number.

It is an amenable number.

20252250868 is a deficient number, since it is larger than the sum of its proper divisors (15197574704).

20252250868 is a wasteful number, since it uses less digits than its factorization.

20252250868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198082 (or 1198080 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 20252250868 in words is "twenty billion, two hundred fifty-two million, two hundred fifty thousand, eight hundred sixty-eight".