57117663 has 8 divisors (see below), whose sum is σ = 84618800. Its totient is φ = 38078424.

The previous prime is 57117653. The next prime is 57117673. The reversal of 57117663 is 36671175.

It is an interprime number because it is at equal distance from previous prime (57117653) and next prime (57117673).

It is not a de Polignac number, because 57117663 - 2¹⁷ = 56986591 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57117653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057708 + ... + 1057761.

It is an arithmetic number, because the mean of its divisors is an integer number (10577350).

Almost surely, 2^57117663 is an apocalyptic number.

57117663 is a deficient number, since it is larger than the sum of its proper divisors (27501137).

57117663 is a wasteful number, since it uses less digits than its factorization.

57117663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115478 (or 2115472 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 57117663 is about 7557.6228405498. The cubic root of 57117663 is about 385.1147417600.

The spelling of 57117663 in words is "fifty-seven million, one hundred seventeen thousand, six hundred sixty-three".