57998263 has 2 divisors, whose sum is σ = 57998264. Its totient is φ = 57998262.

The previous prime is 57998261. The next prime is 57998287. The reversal of 57998263 is 36289975.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57998263 - 2¹ = 57998261 is a prime.

It is a super-2 number, since 2×57998263² = 6727597022034338, which contains 22 as substring.

Together with 57998261, 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 (57998261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28999131 + 28999132.

It is an arithmetic number, because the mean of its divisors is an integer number (28999132).

Almost surely, 2^57998263 is an apocalyptic number.

57998263 is a deficient number, since it is larger than the sum of its proper divisors (1).

57998263 is an equidigital number, since it uses as much as digits as its factorization.

57998263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 57998263 is about 7615.6590653731. The cubic root of 57998263 is about 387.0837998215.

The spelling of 57998263 in words is "fifty-seven million, nine hundred ninety-eight thousand, two hundred sixty-three".