2040645533 has 2 divisors, whose sum is σ = 2040645534. Its totient is φ = 2040645532.

The previous prime is 2040645527. The next prime is 2040645601. The reversal of 2040645533 is 3355460402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2004621529 + 36024004 = 44773^2 + 6002^2 .

It is a cyclic number.

It is not a de Polignac number, because 2040645533 - 2⁶ = 2040645469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2040645533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2040645433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020322766 + 1020322767.

It is an arithmetic number, because the mean of its divisors is an integer number (1020322767).

Almost surely, 2^2040645533 is an apocalyptic number.

It is an amenable number.

2040645533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040645533 is an equidigital number, since it uses as much as digits as its factorization.

2040645533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 2040645533 is about 45173.5047677286. The cubic root of 2040645533 is about 1268.3989026227.

The spelling of 2040645533 in words is "two billion, forty million, six hundred forty-five thousand, five hundred thirty-three".