57282305 has 16 divisors (see below), whose sum is σ = 72230400. Its totient is φ = 43526208.

The previous prime is 57282301. The next prime is 57282307. The reversal of 57282305 is 50328275.

It is a cyclic number.

It is not a de Polignac number, because 57282305 - 2² = 57282301 is a prime.

It is a super-2 number, since 2×57282305² = 6562524932226050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57282301) 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, 15464 + ... + 18806.

It is an arithmetic number, because the mean of its divisors is an integer number (4514400).

Almost surely, 2^57282305 is an apocalyptic number.

It is an amenable number.

57282305 is a deficient number, since it is larger than the sum of its proper divisors (14948095).

57282305 is a wasteful number, since it uses less digits than its factorization.

57282305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 57282305 is about 7568.5074486321. The cubic root of 57282305 is about 385.4844186257.

The spelling of 57282305 in words is "fifty-seven million, two hundred eighty-two thousand, three hundred five".