57042005 has 8 divisors (see below), whose sum is σ = 68950872. Its totient is φ = 45299968.

The previous prime is 57041993. The next prime is 57042019. The reversal of 57042005 is 50024075.

57042005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7789681 + 49252324 = 2791^2 + 7018^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 57042005 - 2¹⁰ = 57040981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40952 + ... + 42321.

It is an arithmetic number, because the mean of its divisors is an integer number (8618859).

Almost surely, 2^57042005 is an apocalyptic number.

It is an amenable number.

57042005 is a deficient number, since it is larger than the sum of its proper divisors (11908867).

57042005 is a wasteful number, since it uses less digits than its factorization.

57042005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83415.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 57042005 is about 7552.6157720355. The cubic root of 57042005 is about 384.9446257572.

The spelling of 57042005 in words is "fifty-seven million, forty-two thousand, five".