56904819 has 8 divisors (see below), whose sum is σ = 75909120. Its totient is φ = 37918536.

The previous prime is 56904811. The next prime is 56904823. The reversal of 56904819 is 91840965.

56904819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56904819 - 2³ = 56904811 is a prime.

It is a super-2 number, since 2×56904819² = 6476316850845522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56904811) 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, 7254 + ... + 12900.

It is an arithmetic number, because the mean of its divisors is an integer number (9488640).

Almost surely, 2^56904819 is an apocalyptic number.

56904819 is a deficient number, since it is larger than the sum of its proper divisors (19004301).

56904819 is a wasteful number, since it uses less digits than its factorization.

56904819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9009.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 56904819 is about 7543.5282858885. The cubic root of 56904819 is about 384.6357808086.

The spelling of 56904819 in words is "fifty-six million, nine hundred four thousand, eight hundred nineteen".