56755619 has 4 divisors (see below), whose sum is σ = 57189000. Its totient is φ = 56322240.

The previous prime is 56755613. The next prime is 56755631. The reversal of 56755619 is 91655765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91655765 = 5 ⋅18331153.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56755619 is a prime.

It is a super-2 number, since 2×56755619² = 6442400576146322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56755619.

It is not an unprimeable number, because it can be changed into a prime (56755613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216494 + ... + 216755.

It is an arithmetic number, because the mean of its divisors is an integer number (14297250).

Almost surely, 2^56755619 is an apocalyptic number.

56755619 is a deficient number, since it is larger than the sum of its proper divisors (433381).

56755619 is a wasteful number, since it uses less digits than its factorization.

56755619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433380.

The product of its digits is 283500, while the sum is 44.

The square root of 56755619 is about 7533.6325235573. The cubic root of 56755619 is about 384.2993249043.

The spelling of 56755619 in words is "fifty-six million, seven hundred fifty-five thousand, six hundred nineteen".