56818745 has 4 divisors (see below), whose sum is σ = 68182500. Its totient is φ = 45454992.

The previous prime is 56818669. The next prime is 56818787. The reversal of 56818745 is 54781865.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54781865 = 5 ⋅10956373.

It can be written as a sum of positive squares in 2 ways, for example, as 39337984 + 17480761 = 6272^2 + 4181^2 .

It is a cyclic number.

It is not a de Polignac number, because 56818745 - 2¹⁰ = 56817721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56818696 and 56818705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5681870 + ... + 5681879.

It is an arithmetic number, because the mean of its divisors is an integer number (17045625).

Almost surely, 2^56818745 is an apocalyptic number.

It is an amenable number.

56818745 is a deficient number, since it is larger than the sum of its proper divisors (11363755).

56818745 is a wasteful number, since it uses less digits than its factorization.

56818745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11363754.

The product of its digits is 268800, while the sum is 44.

The square root of 56818745 is about 7537.8209716071. The cubic root of 56818745 is about 384.4417501015.

The spelling of 56818745 in words is "fifty-six million, eight hundred eighteen thousand, seven hundred forty-five".