57280063 has 2 divisors, whose sum is σ = 57280064. Its totient is φ = 57280062.

The previous prime is 57280061. The next prime is 57280103. The reversal of 57280063 is 36008275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57280063 - 2¹ = 57280061 is a prime.

Together with 57280061, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57280061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28640031 + 28640032.

It is an arithmetic number, because the mean of its divisors is an integer number (28640032).

Almost surely, 2^57280063 is an apocalyptic number.

57280063 is a deficient number, since it is larger than the sum of its proper divisors (1).

57280063 is an equidigital number, since it uses as much as digits as its factorization.

57280063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 57280063 is about 7568.3593334355. The cubic root of 57280063 is about 385.4793893394.

The spelling of 57280063 in words is "fifty-seven million, two hundred eighty thousand, sixty-three".