21052932443533 has 2 divisors, whose sum is σ = 21052932443534. Its totient is φ = 21052932443532.

The previous prime is 21052932443471. The next prime is 21052932443623. The reversal of 21052932443533 is 33534423925012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20870845045444 + 182087398089 = 4568462^2 + 426717^2 .

It is a cyclic number.

It is not a de Polignac number, because 21052932443533 - 2¹³ = 21052932435341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21052932441533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10526466221766 + 10526466221767.

It is an arithmetic number, because the mean of its divisors is an integer number (10526466221767).

Almost surely, 2^{21052932443533} is an apocalyptic number.

It is an amenable number.

21052932443533 is a deficient number, since it is larger than the sum of its proper divisors (1).

21052932443533 is an equidigital number, since it uses as much as digits as its factorization.

21052932443533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 46.

The spelling of 21052932443533 in words is "twenty-one trillion, fifty-two billion, nine hundred thirty-two million, four hundred forty-three thousand, five hundred thirty-three".