505820419 has 8 divisors (see below), whose sum is σ = 547175552. Its totient is φ = 464814720.

The previous prime is 505820411. The next prime is 505820429. The reversal of 505820419 is 914028505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505820419 - 2³ = 505820411 is a prime.

It is a super-2 number, since 2×505820419² = 511708592554671122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505820411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84342 + ... + 90139.

It is an arithmetic number, because the mean of its divisors is an integer number (68396944).

Almost surely, 2^505820419 is an apocalyptic number.

505820419 is a deficient number, since it is larger than the sum of its proper divisors (41355133).

505820419 is a wasteful number, since it uses less digits than its factorization.

505820419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174717.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 505820419 is about 22490.4517295674. The cubic root of 505820419 is about 796.7684320164.

The spelling of 505820419 in words is "five hundred five million, eight hundred twenty thousand, four hundred nineteen".