505774079 has 4 divisors (see below), whose sum is σ = 506478240. Its totient is φ = 505069920.

The previous prime is 505774067. The next prime is 505774081. The reversal of 505774079 is 970477505.

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 505774079 - 2¹⁶ = 505708543 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 (505774679) 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, 351002 + ... + 352439.

It is an arithmetic number, because the mean of its divisors is an integer number (126619560).

Almost surely, 2^505774079 is an apocalyptic number.

505774079 is a deficient number, since it is larger than the sum of its proper divisors (704161).

505774079 is an equidigital number, since it uses as much as digits as its factorization.

505774079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704160.

The product of its (nonzero) digits is 308700, while the sum is 44.

The square root of 505774079 is about 22489.4214910033. The cubic root of 505774079 is about 796.7440996807.

The spelling of 505774079 in words is "five hundred five million, seven hundred seventy-four thousand, seventy-nine".