56419665 has 16 divisors (see below), whose sum is σ = 91361088. Its totient is φ = 29727296.

The previous prime is 56419663. The next prime is 56419687. The reversal of 56419665 is 56691465.

It is a cyclic number.

It is not a de Polignac number, because 56419665 - 2¹ = 56419663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56419661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21414 + ... + 23903.

It is an arithmetic number, because the mean of its divisors is an integer number (5710068).

Almost surely, 2^56419665 is an apocalyptic number.

It is an amenable number.

56419665 is a deficient number, since it is larger than the sum of its proper divisors (34941423).

56419665 is a wasteful number, since it uses less digits than its factorization.

56419665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45408.

The product of its digits is 194400, while the sum is 42.

The square root of 56419665 is about 7511.3024835910. The cubic root of 56419665 is about 383.5395617896.

The spelling of 56419665 in words is "fifty-six million, four hundred nineteen thousand, six hundred sixty-five".