57016013 has 4 divisors (see below), whose sum is σ = 57031260. Its totient is φ = 57000768.

The previous prime is 57015997. The next prime is 57016027. The reversal of 57016013 is 31061075.

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 45333289 + 11682724 = 6733^2 + 3418^2 .

It is a cyclic number.

It is not a de Polignac number, because 57016013 - 2⁴ = 57015997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57016013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57016213) 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, 2243 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (14257815).

Almost surely, 2^57016013 is an apocalyptic number.

It is an amenable number.

57016013 is a deficient number, since it is larger than the sum of its proper divisors (15247).

57016013 is an equidigital number, since it uses as much as digits as its factorization.

57016013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15246.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 57016013 is about 7550.8948476323. The cubic root of 57016013 is about 384.8861483784.

Adding to 57016013 its reverse (31061075), we get a palindrome (88077088).

The spelling of 57016013 in words is "fifty-seven million, sixteen thousand, thirteen".