264820583 has 2 divisors, whose sum is σ = 264820584. Its totient is φ = 264820582.

The previous prime is 264820579. The next prime is 264820601. The reversal of 264820583 is 385028462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264820583 - 2² = 264820579 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264828583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132410291 + 132410292.

It is an arithmetic number, because the mean of its divisors is an integer number (132410292).

Almost surely, 2^264820583 is an apocalyptic number.

264820583 is a deficient number, since it is larger than the sum of its proper divisors (1).

264820583 is an equidigital number, since it uses as much as digits as its factorization.

264820583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 264820583 is about 16273.3089136783. The cubic root of 264820583 is about 642.1708371620.

The spelling of 264820583 in words is "two hundred sixty-four million, eight hundred twenty thousand, five hundred eighty-three".