56486819 has 4 divisors (see below), whose sum is σ = 57282480. Its totient is φ = 55691160.

The previous prime is 56486803. The next prime is 56486861. The reversal of 56486819 is 91868465.

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 56486819 - 2⁴ = 56486803 is a prime.

It is a super-2 number, since 2×56486819² = 6381521441477522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56486879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397724 + ... + 397865.

It is an arithmetic number, because the mean of its divisors is an integer number (14320620).

Almost surely, 2^56486819 is an apocalyptic number.

56486819 is a deficient number, since it is larger than the sum of its proper divisors (795661).

56486819 is an equidigital number, since it uses as much as digits as its factorization.

56486819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795660.

The product of its digits is 414720, while the sum is 47.

The square root of 56486819 is about 7515.7713509659. The cubic root of 56486819 is about 383.6916718954.

The spelling of 56486819 in words is "fifty-six million, four hundred eighty-six thousand, eight hundred nineteen".