57133943 has 4 divisors (see below), whose sum is σ = 57156528. Its totient is φ = 57111360.

The previous prime is 57133939. The next prime is 57134009. The reversal of 57133943 is 34933175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57133943 - 2² = 57133939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57133343) 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, 6938 + ... + 12743.

It is an arithmetic number, because the mean of its divisors is an integer number (14289132).

Almost surely, 2^57133943 is an apocalyptic number.

57133943 is a deficient number, since it is larger than the sum of its proper divisors (22585).

57133943 is a wasteful number, since it uses less digits than its factorization.

57133943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22584.

The product of its digits is 34020, while the sum is 35.

The square root of 57133943 is about 7558.6998220593. The cubic root of 57133943 is about 385.1513274797.

The spelling of 57133943 in words is "fifty-seven million, one hundred thirty-three thousand, nine hundred forty-three".