57352321 has 8 divisors (see below), whose sum is σ = 62342784. Its totient is φ = 52444560.

The previous prime is 57352313. The next prime is 57352327. The reversal of 57352321 is 12325375.

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 57352321 - 2³ = 57352313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57352321.

It is not an unprimeable number, because it can be changed into a prime (57352327) 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, 19225 + ... + 22006.

It is an arithmetic number, because the mean of its divisors is an integer number (7792848).

Almost surely, 2^57352321 is an apocalyptic number.

It is an amenable number.

57352321 is a deficient number, since it is larger than the sum of its proper divisors (4990463).

57352321 is a wasteful number, since it uses less digits than its factorization.

57352321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41351.

The product of its digits is 6300, while the sum is 28.

The square root of 57352321 is about 7573.1315187312. The cubic root of 57352321 is about 385.6414135179.

Adding to 57352321 its reverse (12325375), we get a palindrome (69677696).

The spelling of 57352321 in words is "fifty-seven million, three hundred fifty-two thousand, three hundred twenty-one".