505672019 has 4 divisors (see below), whose sum is σ = 506088744. Its totient is φ = 505255296.

The previous prime is 505672003. The next prime is 505672073. The reversal of 505672019 is 910276505.

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 505672019 - 2⁴ = 505672003 is a prime.

It is a super-2 number, since 2×505672019² = 511408381599072722, which contains 22 as substring.

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 505672019.

It is not an unprimeable number, because it can be changed into a prime (505675019) 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, 206537 + ... + 208970.

It is an arithmetic number, because the mean of its divisors is an integer number (126522186).

Almost surely, 2^505672019 is an apocalyptic number.

505672019 is a deficient number, since it is larger than the sum of its proper divisors (416725).

505672019 is a wasteful number, since it uses less digits than its factorization.

505672019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416724.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 505672019 is about 22487.1523097079. The cubic root of 505672019 is about 796.6905044911.

The spelling of 505672019 in words is "five hundred five million, six hundred seventy-two thousand, nineteen".