264545663 has 2 divisors, whose sum is σ = 264545664. Its totient is φ = 264545662.

The previous prime is 264545581. The next prime is 264545689. The reversal of 264545663 is 366545462.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264545663 is a prime.

It is a super-5 number, since 5×264545663⁵ (a number of 43 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 264545663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264545363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132272831 + 132272832.

It is an arithmetic number, because the mean of its divisors is an integer number (132272832).

Almost surely, 2^264545663 is an apocalyptic number.

264545663 is a deficient number, since it is larger than the sum of its proper divisors (1).

264545663 is an equidigital number, since it uses as much as digits as its factorization.

264545663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 41.

The square root of 264545663 is about 16264.8597596167. The cubic root of 264545663 is about 641.9485398206.

The spelling of 264545663 in words is "two hundred sixty-four million, five hundred forty-five thousand, six hundred sixty-three".