57448719 has 6 divisors (see below), whose sum is σ = 82981496. Its totient is φ = 38299140.

The previous prime is 57448693. The next prime is 57448747. The reversal of 57448719 is 91784475.

It is a happy number.

57448719 is a `hidden beast` number, since 574 + 4 + 8 + 71 + 9 = 666.

It is not a de Polignac number, because 57448719 - 2⁹ = 57448207 is a prime.

It is a super-2 number, since 2×57448719² = 6600710629481922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57448019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3191587 + ... + 3191604.

Almost surely, 2^57448719 is an apocalyptic number.

57448719 is a deficient number, since it is larger than the sum of its proper divisors (25532777).

57448719 is a wasteful number, since it uses less digits than its factorization.

57448719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383197 (or 6383194 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 57448719 is about 7579.4933207966. The cubic root of 57448719 is about 385.8573550977.

The spelling of 57448719 in words is "fifty-seven million, four hundred forty-eight thousand, seven hundred nineteen".