57288447 has 6 divisors (see below), whose sum is σ = 82749992. Its totient is φ = 38192292.

The previous prime is 57288437. The next prime is 57288449. The reversal of 57288447 is 74488275.

It is not a de Polignac number, because 57288447 - 2¹⁰ = 57287423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57288449) 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 5 ways as a sum of consecutive naturals, for example, 3182683 + ... + 3182700.

Almost surely, 2^57288447 is an apocalyptic number.

57288447 is a deficient number, since it is larger than the sum of its proper divisors (25461545).

57288447 is a wasteful number, since it uses less digits than its factorization.

57288447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6365389 (or 6365386 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 57288447 is about 7568.9131980754. The cubic root of 57288447 is about 385.4981957755.

The spelling of 57288447 in words is "fifty-seven million, two hundred eighty-eight thousand, four hundred forty-seven".