57040771 has 4 divisors (see below), whose sum is σ = 57095200. Its totient is φ = 56986344.

The previous prime is 57040733. The next prime is 57040777. The reversal of 57040771 is 17704075.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57040771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57040777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25611 + ... + 27748.

It is an arithmetic number, because the mean of its divisors is an integer number (14273800).

Almost surely, 2^57040771 is an apocalyptic number.

57040771 is a deficient number, since it is larger than the sum of its proper divisors (54429).

57040771 is a wasteful number, since it uses less digits than its factorization.

57040771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54428.

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 57040771 is about 7552.5340780429. The cubic root of 57040771 is about 384.9418498783.

The spelling of 57040771 in words is "fifty-seven million, forty thousand, seven hundred seventy-one".