505152805 has 8 divisors (see below), whose sum is σ = 617621112. Its totient is φ = 396497088.

The previous prime is 505152793. The next prime is 505152847. The reversal of 505152805 is 508251505.

It can be written as a sum of positive squares in 4 ways, for example, as 167806116 + 337346689 = 12954^2 + 18367^2 .

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 505152805 - 2⁹ = 505152293 is a prime.

It is a Duffinian number.

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, 952854 + ... + 953383.

It is an arithmetic number, because the mean of its divisors is an integer number (77202639).

Almost surely, 2^505152805 is an apocalyptic number.

It is an amenable number.

505152805 is a deficient number, since it is larger than the sum of its proper divisors (112468307).

505152805 is a wasteful number, since it uses less digits than its factorization.

505152805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906295.

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 505152805 is about 22475.6046637237. The cubic root of 505152805 is about 796.4177357756.

The spelling of 505152805 in words is "five hundred five million, one hundred fifty-two thousand, eight hundred five".