57008705 has 8 divisors (see below), whose sum is σ = 73672872. Its totient is φ = 42098688.

The previous prime is 57008689. The next prime is 57008713. The reversal of 57008705 is 50780075.

It can be written as a sum of positive squares in 4 ways, for example, as 12439729 + 44568976 = 3527^2 + 6676^2 .

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 57008705 - 2⁴ = 57008689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438464 + ... + 438593.

It is an arithmetic number, because the mean of its divisors is an integer number (9209109).

Almost surely, 2^57008705 is an apocalyptic number.

It is an amenable number.

57008705 is a deficient number, since it is larger than the sum of its proper divisors (16664167).

57008705 is a wasteful number, since it uses less digits than its factorization.

57008705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877075.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 57008705 is about 7550.4109159701. The cubic root of 57008705 is about 384.8697034768.

The spelling of 57008705 in words is "fifty-seven million, eight thousand, seven hundred five".