264256805 has 8 divisors (see below), whose sum is σ = 318880800. Its totient is φ = 210223696.

The previous prime is 264256799. The next prime is 264256813. The reversal of 264256805 is 508652462.

264256805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264256805 - 2⁸ = 264256549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146735 + ... + 148524.

It is an arithmetic number, because the mean of its divisors is an integer number (39860100).

Almost surely, 2^264256805 is an apocalyptic number.

It is an amenable number.

264256805 is a deficient number, since it is larger than the sum of its proper divisors (54623995).

264256805 is a wasteful number, since it uses less digits than its factorization.

264256805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295443.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 264256805 is about 16255.9775159785. The cubic root of 264256805 is about 641.7148063806.

The spelling of 264256805 in words is "two hundred sixty-four million, two hundred fifty-six thousand, eight hundred five".