57449999 has 4 divisors (see below), whose sum is σ = 57578400. Its totient is φ = 57321600.

The previous prime is 57449971. The next prime is 57450017. The reversal of 57449999 is 99994475.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57449999 - 2¹² = 57445903 is a prime.

It is a Duffinian number.

57449999 is a modest number, since divided by 9999 gives 5744 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57449969) 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, 63527 + ... + 64424.

It is an arithmetic number, because the mean of its divisors is an integer number (14394600).

Almost surely, 2^57449999 is an apocalyptic number.

57449999 is a deficient number, since it is larger than the sum of its proper divisors (128401).

57449999 is a wasteful number, since it uses less digits than its factorization.

57449999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128400.

The product of its digits is 3674160, while the sum is 56.

The square root of 57449999 is about 7579.5777586881. The cubic root of 57449999 is about 385.8602208056.

The spelling of 57449999 in words is "fifty-seven million, four hundred forty-nine thousand, nine hundred ninety-nine".