57668133 has 4 divisors (see below), whose sum is σ = 76890848. Its totient is φ = 38445420.

The previous prime is 57668129. The next prime is 57668147. The reversal of 57668133 is 33186675.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57668133 - 2² = 57668129 is a prime.

It is a super-2 number, since 2×57668133² = 6651227127411378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57668091 and 57668100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57668113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9611353 + ... + 9611358.

It is an arithmetic number, because the mean of its divisors is an integer number (19222712).

Almost surely, 2^57668133 is an apocalyptic number.

It is an amenable number.

57668133 is a deficient number, since it is larger than the sum of its proper divisors (19222715).

57668133 is a wasteful number, since it uses less digits than its factorization.

57668133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19222714.

The product of its digits is 90720, while the sum is 39.

The square root of 57668133 is about 7593.9537133169. The cubic root of 57668133 is about 386.3479662689.

The spelling of 57668133 in words is "fifty-seven million, six hundred sixty-eight thousand, one hundred thirty-three".