56481619 has 8 divisors (see below), whose sum is σ = 57032640. Its totient is φ = 55933416.

The previous prime is 56481613. The next prime is 56481637. The reversal of 56481619 is 91618465.

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 56481619 - 2⁹ = 56481107 is a prime.

It is a super-2 number, since 2×56481619² = 6380346569722322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56481613) 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 7 ways as a sum of consecutive naturals, for example, 67884 + ... + 68710.

It is an arithmetic number, because the mean of its divisors is an integer number (7129080).

Almost surely, 2^56481619 is an apocalyptic number.

56481619 is a deficient number, since it is larger than the sum of its proper divisors (551021).

56481619 is a wasteful number, since it uses less digits than its factorization.

56481619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its digits is 51840, while the sum is 40.

The square root of 56481619 is about 7515.4254037945. The cubic root of 56481619 is about 383.6798977154.

The spelling of 56481619 in words is "fifty-six million, four hundred eighty-one thousand, six hundred nineteen".