57352121 has 4 divisors (see below), whose sum is σ = 57624144. Its totient is φ = 57080100.

The previous prime is 57352093. The next prime is 57352157. The reversal of 57352121 is 12125375.

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 a cyclic number.

It is not a de Polignac number, because 57352121 - 2¹⁰ = 57351097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57352171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135695 + ... + 136116.

It is an arithmetic number, because the mean of its divisors is an integer number (14406036).

Almost surely, 2^57352121 is an apocalyptic number.

It is an amenable number.

57352121 is a deficient number, since it is larger than the sum of its proper divisors (272023).

57352121 is a wasteful number, since it uses less digits than its factorization.

57352121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272022.

The product of its digits is 2100, while the sum is 26.

The square root of 57352121 is about 7573.1183141425. The cubic root of 57352121 is about 385.6409652456.

Adding to 57352121 its reverse (12125375), we get a palindrome (69477496).

The spelling of 57352121 in words is "fifty-seven million, three hundred fifty-two thousand, one hundred twenty-one".