57007943 has 4 divisors (see below), whose sum is σ = 57263808. Its totient is φ = 56752080.

The previous prime is 57007933. The next prime is 57007949. The reversal of 57007943 is 34970075.

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 57007943 - 2⁴ = 57007927 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 (57007949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127598 + ... + 128043.

It is an arithmetic number, because the mean of its divisors is an integer number (14315952).

Almost surely, 2^57007943 is an apocalyptic number.

57007943 is a deficient number, since it is larger than the sum of its proper divisors (255865).

57007943 is a wasteful number, since it uses less digits than its factorization.

57007943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255864.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 57007943 is about 7550.3604549717. The cubic root of 57007943 is about 384.8679886977.

The spelling of 57007943 in words is "fifty-seven million, seven thousand, nine hundred forty-three".