57116329 has 4 divisors (see below), whose sum is σ = 57131460. Its totient is φ = 57101200.

The previous prime is 57116309. The next prime is 57116333. The reversal of 57116329 is 92361175.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 51451929 + 5664400 = 7173^2 + 2380^2 .

It is a cyclic number.

It is not a de Polignac number, because 57116329 - 2¹³ = 57108137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57116294 and 57116303.

It is not an unprimeable number, because it can be changed into a prime (57116309) 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, 3279 + ... + 11179.

It is an arithmetic number, because the mean of its divisors is an integer number (14282865).

Almost surely, 2^57116329 is an apocalyptic number.

It is an amenable number.

57116329 is a deficient number, since it is larger than the sum of its proper divisors (15131).

57116329 is an equidigital number, since it uses as much as digits as its factorization.

57116329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15130.

The product of its digits is 11340, while the sum is 34.

The square root of 57116329 is about 7557.5345847704. The cubic root of 57116329 is about 385.1117435803. Note that the first 3 decimals are identical.

It can be divided in two parts, 571 and 16329, that added together give a square (16900 = 130²).

The spelling of 57116329 in words is "fifty-seven million, one hundred sixteen thousand, three hundred twenty-nine".