57331449 has 16 divisors (see below), whose sum is σ = 97069440. Its totient is φ = 32760720.

The previous prime is 57331447. The next prime is 57331459. The reversal of 57331449 is 94413375.

It is not a de Polignac number, because 57331449 - 2¹ = 57331447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57331447) 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 15 ways as a sum of consecutive naturals, for example, 151482 + ... + 151859.

It is an arithmetic number, because the mean of its divisors is an integer number (6066840).

Almost surely, 2^57331449 is an apocalyptic number.

It is an amenable number.

57331449 is a deficient number, since it is larger than the sum of its proper divisors (39737991).

57331449 is a wasteful number, since it uses less digits than its factorization.

57331449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303357 (or 303351 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 57331449 is about 7571.7533636536. The cubic root of 57331449 is about 385.5946261978.

The spelling of 57331449 in words is "fifty-seven million, three hundred thirty-one thousand, four hundred forty-nine".