20361305250 has 384 divisors, whose sum is σ = 65341575936. Its totient is φ = 4547664000.

The previous prime is 20361305213. The next prime is 20361305257. The reversal of 20361305250 is 5250316302.

20361305250 is a `hidden beast` number, since 2 + 0 + 3 + 6 + 130 + 525 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20361305257) 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 191 ways as a sum of consecutive naturals, for example, 38931489 + ... + 38932011.

It is an arithmetic number, because the mean of its divisors is an integer number (170160354).

Almost surely, 2^20361305250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20361305250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32670787968).

20361305250 is an abundant number, since it is smaller than the sum of its proper divisors (44980270686).

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

20361305250 is a wasteful number, since it uses less digits than its factorization.

20361305250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 20361305250 in words is "twenty billion, three hundred sixty-one million, three hundred five thousand, two hundred fifty".