505564995 has 32 divisors (see below), whose sum is σ = 872488512. Its totient is φ = 248504832.

The previous prime is 505564991. The next prime is 505565059. The reversal of 505564995 is 599465505.

It is not a de Polignac number, because 505564995 - 2² = 505564991 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (505564991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153789 + ... + 157041.

It is an arithmetic number, because the mean of its divisors is an integer number (27265266).

Almost surely, 2^505564995 is an apocalyptic number.

505564995 is a deficient number, since it is larger than the sum of its proper divisors (366923517).

505564995 is a wasteful number, since it uses less digits than its factorization.

505564995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its (nonzero) digits is 1215000, while the sum is 48.

The square root of 505564995 is about 22484.7725138592. The cubic root of 505564995 is about 796.6342947890.

The spelling of 505564995 in words is "five hundred five million, five hundred sixty-four thousand, nine hundred ninety-five".