20530504030 has 16 divisors (see below), whose sum is σ = 38561642784. Its totient is φ = 7855149280.

The previous prime is 20530504003. The next prime is 20530504051. The reversal of 20530504030 is 3040503502.

It is a junction number, because it is equal to n+sod(n) for n = 20530503992 and 20530504010.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44631301 + ... + 44631760.

It is an arithmetic number, because the mean of its divisors is an integer number (2410102674).

Almost surely, 2^20530504030 is an apocalyptic number.

20530504030 is a deficient number, since it is larger than the sum of its proper divisors (18031138754).

20530504030 is a wasteful number, since it uses less digits than its factorization.

20530504030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89263091.

The product of its (nonzero) digits is 1800, while the sum is 22.

The spelling of 20530504030 in words is "twenty billion, five hundred thirty million, five hundred four thousand, thirty".