2021526433 has 2 divisors, whose sum is σ = 2021526434. Its totient is φ = 2021526432.

The previous prime is 2021526431. The next prime is 2021526517. The reversal of 2021526433 is 3346251202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1235733409 + 785793024 = 35153^2 + 28032^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021526433 - 2¹ = 2021526431 is a prime.

Together with 2021526431, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2021526431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010763216 + 1010763217.

It is an arithmetic number, because the mean of its divisors is an integer number (1010763217).

Almost surely, 2^2021526433 is an apocalyptic number.

It is an amenable number.

2021526433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021526433 is an equidigital number, since it uses as much as digits as its factorization.

2021526433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 2021526433 is about 44961.3882459161. The cubic root of 2021526433 is about 1264.4251963161.

Adding to 2021526433 its reverse (3346251202), we get a palindrome (5367777635).

The spelling of 2021526433 in words is "two billion, twenty-one million, five hundred twenty-six thousand, four hundred thirty-three".