503861819 has 12 divisors (see below), whose sum is σ = 520803864. Its totient is φ = 487448064.

The previous prime is 503861807. The next prime is 503861837. The reversal of 503861819 is 918168305.

It is not a de Polignac number, because 503861819 - 2⁸ = 503861563 is a prime.

It is a super-2 number, since 2×503861819² = 507753465291977522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503861849) 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 11 ways as a sum of consecutive naturals, for example, 263264 + ... + 265170.

It is an arithmetic number, because the mean of its divisors is an integer number (43400322).

Almost surely, 2^503861819 is an apocalyptic number.

503861819 is a deficient number, since it is larger than the sum of its proper divisors (16942045).

503861819 is a wasteful number, since it uses less digits than its factorization.

503861819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174 (or 2137 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 503861819 is about 22446.8665742014. The cubic root of 503861819 is about 795.7387060819.

The spelling of 503861819 in words is "five hundred three million, eight hundred sixty-one thousand, eight hundred nineteen".