57280563 has 12 divisors (see below), whose sum is σ = 84141720. Its totient is φ = 37539456.

The previous prime is 57280549. The next prime is 57280571. The reversal of 57280563 is 36508275.

57280563 is a `hidden beast` number, since 572 + 80 + 5 + 6 + 3 = 666.

It is not a de Polignac number, because 57280563 - 2²² = 53086259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57280513) 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 11 ways as a sum of consecutive naturals, for example, 53406 + ... + 54467.

It is an arithmetic number, because the mean of its divisors is an integer number (7011810).

Almost surely, 2^57280563 is an apocalyptic number.

57280563 is a deficient number, since it is larger than the sum of its proper divisors (26861157).

57280563 is a wasteful number, since it uses less digits than its factorization.

57280563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107938 (or 107935 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 57280563 is about 7568.3923656216. The cubic root of 57280563 is about 385.4805109579.

The spelling of 57280563 in words is "fifty-seven million, two hundred eighty thousand, five hundred sixty-three".