57000005 has 8 divisors (see below), whose sum is σ = 68534424. Its totient is φ = 45510400.

The previous prime is 56999989. The next prime is 57000011. The reversal of 57000005 is 50000075.

It can be written as a sum of positive squares in 4 ways, for example, as 1079521 + 55920484 = 1039^2 + 7478^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57000005 - 2⁴ = 56999989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8336 + ... + 13545.

It is an arithmetic number, because the mean of its divisors is an integer number (8566803).

Almost surely, 2^57000005 is an apocalyptic number.

It is an amenable number.

57000005 is a deficient number, since it is larger than the sum of its proper divisors (11534419).

57000005 is a wasteful number, since it uses less digits than its factorization.

57000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22407.

The product of its (nonzero) digits is 175, while the sum is 17.

The square root of 57000005 is about 7549.8347664038. The cubic root of 57000005 is about 384.8501243806.

The spelling of 57000005 in words is "fifty-seven million, five", and thus it is an aban number and an uban number.