20345250530 has 64 divisors (see below), whose sum is σ = 41718613248. Its totient is φ = 7071356160.

The previous prime is 20345250491. The next prime is 20345250539. The reversal of 20345250530 is 3505254302.

It is a junction number, because it is equal to n+sod(n) for n = 20345250493 and 20345250502.

It is not an unprimeable number, because it can be changed into a prime (20345250539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5192132 + ... + 5196048.

It is an arithmetic number, because the mean of its divisors is an integer number (651853332).

Almost surely, 2^20345250530 is an apocalyptic number.

20345250530 is an abundant number, since it is smaller than the sum of its proper divisors (21373362718).

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

20345250530 is a wasteful number, since it uses less digits than its factorization.

20345250530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011.

The product of its (nonzero) digits is 18000, while the sum is 29.

The spelling of 20345250530 in words is "twenty billion, three hundred forty-five million, two hundred fifty thousand, five hundred thirty".