56775242 has 16 divisors (see below), whose sum is σ = 89602632. Its totient is φ = 26945280.

The previous prime is 56775241. The next prime is 56775253. The reversal of 56775242 is 24257765.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52113961 + 4661281 = 7219^2 + 2159^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56775196 and 56775205.

It is not an unprimeable number, because it can be changed into a prime (56775241) 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 7 ways as a sum of consecutive naturals, for example, 6323 + ... + 12390.

Almost surely, 2^56775242 is an apocalyptic number.

56775242 is a deficient number, since it is larger than the sum of its proper divisors (32827390).

56775242 is a wasteful number, since it uses less digits than its factorization.

56775242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18793.

The product of its digits is 117600, while the sum is 38.

The square root of 56775242 is about 7534.9347707860. The cubic root of 56775242 is about 384.3436097220.

The spelling of 56775242 in words is "fifty-six million, seven hundred seventy-five thousand, two hundred forty-two".