57263911 has 2 divisors, whose sum is σ = 57263912. Its totient is φ = 57263910.

The previous prime is 57263909. The next prime is 57263959. The reversal of 57263911 is 11936275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57263911 - 2¹ = 57263909 is a prime.

It is a super-3 number, since 3×57263911³ (a number of 24 digits) contains 333 as substring.

Together with 57263909, 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 (57263981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28631955 + 28631956.

It is an arithmetic number, because the mean of its divisors is an integer number (28631956).

Almost surely, 2^57263911 is an apocalyptic number.

57263911 is a deficient number, since it is larger than the sum of its proper divisors (1).

57263911 is an equidigital number, since it uses as much as digits as its factorization.

57263911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 34.

The square root of 57263911 is about 7567.2921841303. The cubic root of 57263911 is about 385.4431530640.

The spelling of 57263911 in words is "fifty-seven million, two hundred sixty-three thousand, nine hundred eleven".