57210013 has 8 divisors (see below), whose sum is σ = 65445632. Its totient is φ = 48990096.

The previous prime is 57209989. The next prime is 57210017. The reversal of 57210013 is 31001275.

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 57210013 - 2⁹ = 57209501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57210017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5356 + ... + 11962.

It is an arithmetic number, because the mean of its divisors is an integer number (8180704).

Almost surely, 2^57210013 is an apocalyptic number.

It is an amenable number.

57210013 is a deficient number, since it is larger than the sum of its proper divisors (8235619).

57210013 is a wasteful number, since it uses less digits than its factorization.

57210013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7851.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 57210013 is about 7563.7300983047. The cubic root of 57210013 is about 385.3221860305.

Adding to 57210013 its reverse (31001275), we get a palindrome (88211288).

It can be divided in two parts, 572 and 10013, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 57210013 in words is "fifty-seven million, two hundred ten thousand, thirteen".