505059907 has 4 divisors (see below), whose sum is σ = 550974456. Its totient is φ = 459145360.

The previous prime is 505059871. The next prime is 505059913. The reversal of 505059907 is 709950505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505059907 - 2²³ = 496671299 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505059907.

It is not an unprimeable number, because it can be changed into a prime (505059977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22957258 + ... + 22957279.

It is an arithmetic number, because the mean of its divisors is an integer number (137743614).

Almost surely, 2^505059907 is an apocalyptic number.

505059907 is a deficient number, since it is larger than the sum of its proper divisors (45914549).

505059907 is a wasteful number, since it uses less digits than its factorization.

505059907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45914548.

The product of its (nonzero) digits is 70875, while the sum is 40.

The square root of 505059907 is about 22473.5379279721. The cubic root of 505059907 is about 796.3689121656.

The spelling of 505059907 in words is "five hundred five million, fifty-nine thousand, nine hundred seven".