20275705350 has 240 divisors, whose sum is σ = 59915473200. Its totient is φ = 5083810560.

The previous prime is 20275705339. The next prime is 20275705399. The reversal of 20275705350 is 5350757202.

It is a happy number.

It is a super-2 number, since 2×20275705350² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 19897141 + ... + 19898159.

It is an arithmetic number, because the mean of its divisors is an integer number (249647805).

Almost surely, 2^20275705350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20275705350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29957736600).

20275705350 is an abundant number, since it is smaller than the sum of its proper divisors (39639767850).

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

20275705350 is a wasteful number, since it uses less digits than its factorization.

20275705350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The spelling of 20275705350 in words is "twenty billion, two hundred seventy-five million, seven hundred five thousand, three hundred fifty".