20530305514 has 16 divisors (see below), whose sum is σ = 31705144200. Its totient is φ = 9963281664.

The previous prime is 20530305511. The next prime is 20530305533. The reversal of 20530305514 is 41550303502.

It can be written as a sum of positive squares in 4 ways, for example, as 17737711489 + 2792594025 = 133183^2 + 52845^2 .

It is not an unprimeable number, because it can be changed into a prime (20530305511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308899 + ... + 369430.

Almost surely, 2^20530305514 is an apocalyptic number.

20530305514 is a deficient number, since it is larger than the sum of its proper divisors (11174838686).

20530305514 is a wasteful number, since it uses less digits than its factorization.

20530305514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678777.

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 20530305514 in words is "twenty billion, five hundred thirty million, three hundred five thousand, five hundred fourteen".