56787845 has 16 divisors (see below), whose sum is σ = 69189120. Its totient is φ = 44740800.

The previous prime is 56787839. The next prime is 56787847. The reversal of 56787845 is 54878765.

It is not a de Polignac number, because 56787845 - 2⁶ = 56787781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56787793 and 56787802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56787847) 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 15 ways as a sum of consecutive naturals, for example, 118316 + ... + 118794.

It is an arithmetic number, because the mean of its divisors is an integer number (4324320).

Almost surely, 2^56787845 is an apocalyptic number.

It is an amenable number.

56787845 is a deficient number, since it is larger than the sum of its proper divisors (12401275).

56787845 is a wasteful number, since it uses less digits than its factorization.

56787845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796.

The product of its digits is 1881600, while the sum is 50.

The square root of 56787845 is about 7535.7710288994. The cubic root of 56787845 is about 384.3720465545.

The spelling of 56787845 in words is "fifty-six million, seven hundred eighty-seven thousand, eight hundred forty-five".