20056825530 has 200 divisors, whose sum is σ = 62921361492. Its totient is φ = 4583972736.

The previous prime is 20056825513. The next prime is 20056825549. The reversal of 20056825530 is 3552865002.

It is a happy number.

20056825530 is a `hidden beast` number, since 20 + 0 + 5 + 6 + 82 + 553 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19790581041 + 266244489 = 140679^2 + 16317^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 1939654 + ... + 1949966.

Almost surely, 2^20056825530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20056825530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31460680746).

20056825530 is an abundant number, since it is smaller than the sum of its proper divisors (42864535962).

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

20056825530 is an equidigital number, since it uses as much as digits as its factorization.

20056825530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10360 (or 10330 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 20056825530 in words is "twenty billion, fifty-six million, eight hundred twenty-five thousand, five hundred thirty".