57842705 has 4 divisors (see below), whose sum is σ = 69411252. Its totient is φ = 46274160.

The previous prime is 57842693. The next prime is 57842731. The reversal of 57842705 is 50724875.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37736449 + 20106256 = 6143^2 + 4484^2 .

It is not a de Polignac number, because 57842705 - 2⁴ = 57842689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5784266 + ... + 5784275.

It is an arithmetic number, because the mean of its divisors is an integer number (17352813).

Almost surely, 2^57842705 is an apocalyptic number.

It is an amenable number.

57842705 is a deficient number, since it is larger than the sum of its proper divisors (11568547).

57842705 is a wasteful number, since it uses less digits than its factorization.

57842705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11568546.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 57842705 is about 7605.4391720663. The cubic root of 57842705 is about 386.7374222314.

The spelling of 57842705 in words is "fifty-seven million, eight hundred forty-two thousand, seven hundred five".