505075011565 has 16 divisors (see below), whose sum is σ = 612182089728. Its totient is φ = 400012373376.

The previous prime is 505075011533. The next prime is 505075011569. The reversal of 505075011565 is 565110570505.

It is a cyclic number.

It is not a de Polignac number, because 505075011565 - 2⁵ = 505075011533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505075011569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564952 + ... + 1152961.

It is an arithmetic number, because the mean of its divisors is an integer number (38261380608).

Almost surely, 2^505075011565 is an apocalyptic number.

It is an amenable number.

505075011565 is a deficient number, since it is larger than the sum of its proper divisors (107107078163).

505075011565 is a wasteful number, since it uses less digits than its factorization.

505075011565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718508.

The product of its (nonzero) digits is 131250, while the sum is 40.

The spelling of 505075011565 in words is "five hundred five billion, seventy-five million, eleven thousand, five hundred sixty-five".