57003081 has 4 divisors (see below), whose sum is σ = 76004112. Its totient is φ = 38002052.

The previous prime is 57003077. The next prime is 57003083. The reversal of 57003081 is 18030075.

57003081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 57003081 - 2² = 57003077 is a prime.

It is a super-2 number, since 2×57003081² = 6498702486985122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57003083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9500511 + ... + 9500516.

It is an arithmetic number, because the mean of its divisors is an integer number (19001028).

Almost surely, 2^57003081 is an apocalyptic number.

It is an amenable number.

57003081 is a deficient number, since it is larger than the sum of its proper divisors (19001031).

57003081 is a wasteful number, since it uses less digits than its factorization.

57003081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19001030.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 57003081 is about 7550.0384767231. The cubic root of 57003081 is about 384.8570470565.

The spelling of 57003081 in words is "fifty-seven million, three thousand, eighty-one".