801265005 has 48 divisors (see below), whose sum is σ = 1413434880. Its totient is φ = 419837184.

The previous prime is 801264917. The next prime is 801265027. The reversal of 801265005 is 500562108.

801265005 is a `hidden beast` number, since 8 + 0 + 1 + 2 + 650 + 0 + 5 = 666.

It is not a de Polignac number, because 801265005 - 2⁹ = 801264493 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 801265005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 934537 + ... + 935393.

It is an arithmetic number, because the mean of its divisors is an integer number (29446560).

Almost surely, 2^801265005 is an apocalyptic number.

It is an amenable number.

801265005 is a deficient number, since it is larger than the sum of its proper divisors (612169875).

801265005 is a wasteful number, since it uses less digits than its factorization.

801265005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 801265005 is about 28306.6247546400. The cubic root of 801265005 is about 928.8068118014.

The spelling of 801265005 in words is "eight hundred one million, two hundred sixty-five thousand, five".