20030056530 has 64 divisors (see below), whose sum is σ = 52932538368. Its totient is φ = 4810381760.

The previous prime is 20030056513. The next prime is 20030056547. The reversal of 20030056530 is 3565003002.

It is an interprime number because it is at equal distance from previous prime (20030056513) and next prime (20030056547).

It is a self number, because there is not a number n which added to its sum of digits gives 20030056530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248322 + ... + 318941.

It is an arithmetic number, because the mean of its divisors is an integer number (827070912).

Almost surely, 2^20030056530 is an apocalyptic number.

20030056530 is an abundant number, since it is smaller than the sum of its proper divisors (32902481838).

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

20030056530 is a wasteful number, since it uses less digits than its factorization.

20030056530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567391.

The product of its (nonzero) digits is 2700, while the sum is 24.

Adding to 20030056530 its reverse (3565003002), we get a palindrome (23595059532).

The spelling of 20030056530 in words is "twenty billion, thirty million, fifty-six thousand, five hundred thirty".