57043903 has 4 divisors (see below), whose sum is σ = 65193040. Its totient is φ = 48894768.

The previous prime is 57043859. The next prime is 57043913. The reversal of 57043903 is 30934075.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57043903 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 (57043913) 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, 4074558 + ... + 4074571.

It is an arithmetic number, because the mean of its divisors is an integer number (16298260).

Almost surely, 2^57043903 is an apocalyptic number.

57043903 is a deficient number, since it is larger than the sum of its proper divisors (8149137).

57043903 is an equidigital number, since it uses as much as digits as its factorization.

57043903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8149136.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 57043903 is about 7552.7414228213. The cubic root of 57043903 is about 384.9488952238.

Adding to 57043903 its reverse (30934075), we get a palindrome (87977978).

The spelling of 57043903 in words is "fifty-seven million, forty-three thousand, nine hundred three".