57201613 has 4 divisors (see below), whose sum is σ = 65373280. Its totient is φ = 49029948.

The previous prime is 57201607. The next prime is 57201619. The reversal of 57201613 is 31610275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (57201607) and next prime (57201619).

It is a cyclic number.

It is not a de Polignac number, because 57201613 - 2⁵ = 57201581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57201619) 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, 4085823 + ... + 4085836.

It is an arithmetic number, because the mean of its divisors is an integer number (16343320).

Almost surely, 2^57201613 is an apocalyptic number.

It is an amenable number.

57201613 is a deficient number, since it is larger than the sum of its proper divisors (8171667).

57201613 is an equidigital number, since it uses as much as digits as its factorization.

57201613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8171666.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 57201613 is about 7563.1747963405. The cubic root of 57201613 is about 385.3033264835.

Adding to 57201613 its reverse (31610275), we get a palindrome (88811888).

The spelling of 57201613 in words is "fifty-seven million, two hundred one thousand, six hundred thirteen".