2263585021 has 2 divisors, whose sum is σ = 2263585022. Its totient is φ = 2263585020.

The previous prime is 2263584991. The next prime is 2263585067. The reversal of 2263585021 is 1205853622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2249604900 + 13980121 = 47430^2 + 3739^2 .

It is a cyclic number.

It is not a de Polignac number, because 2263585021 - 2⁹ = 2263584509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2263585081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1131792510 + 1131792511.

It is an arithmetic number, because the mean of its divisors is an integer number (1131792511).

Almost surely, 2^2263585021 is an apocalyptic number.

It is an amenable number.

2263585021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2263585021 is an equidigital number, since it uses as much as digits as its factorization.

2263585021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 2263585021 is about 47577.1480965390. The cubic root of 2263585021 is about 1313.0026535613.

The spelling of 2263585021 in words is "two billion, two hundred sixty-three million, five hundred eighty-five thousand, twenty-one".