2020526009 has 2 divisors, whose sum is σ = 2020526010. Its totient is φ = 2020526008.

The previous prime is 2020525999. The next prime is 2020526051. The reversal of 2020526009 is 9006250202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1099585600 + 920940409 = 33160^2 + 30347^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020526009 - 2¹² = 2020521913 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2020526059) 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 as a sum of consecutive naturals, namely, 1010263004 + 1010263005.

It is an arithmetic number, because the mean of its divisors is an integer number (1010263005).

Almost surely, 2^2020526009 is an apocalyptic number.

It is an amenable number.

2020526009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020526009 is an equidigital number, since it uses as much as digits as its factorization.

2020526009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2020526009 is about 44950.2615009079. The cubic root of 2020526009 is about 1264.2165800250.

The spelling of 2020526009 in words is "two billion, twenty million, five hundred twenty-six thousand, nine".