56501768 has 8 divisors (see below), whose sum is σ = 105940830. Its totient is φ = 28250880.

The previous prime is 56501719. The next prime is 56501779. The reversal of 56501768 is 86710565.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 51294244 + 5207524 = 7162^2 + 2282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3531353 + ... + 3531368.

Almost surely, 2^56501768 is an apocalyptic number.

It is an amenable number.

56501768 is a deficient number, since it is larger than the sum of its proper divisors (49439062).

56501768 is a wasteful number, since it uses less digits than its factorization.

56501768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7062727 (or 7062723 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 56501768 is about 7516.7657938770. The cubic root of 56501768 is about 383.7255163745.

The spelling of 56501768 in words is "fifty-six million, five hundred one thousand, seven hundred sixty-eight".