57066091547 has 4 divisors (see below), whose sum is σ = 57449085600. Its totient is φ = 56683097496.

The previous prime is 57066091483. The next prime is 57066091561. The reversal of 57066091547 is 74519066075.

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 57066091547 - 2⁶ = 57066091483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57066091495 and 57066091504.

It is not an unprimeable number, because it can be changed into a prime (57066091597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191496803 + ... + 191497100.

It is an arithmetic number, because the mean of its divisors is an integer number (14362271400).

Almost surely, 2^57066091547 is an apocalyptic number.

57066091547 is a deficient number, since it is larger than the sum of its proper divisors (382994053).

57066091547 is a wasteful number, since it uses less digits than its factorization.

57066091547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382994052.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 57066091547 in words is "fifty-seven billion, sixty-six million, ninety-one thousand, five hundred forty-seven".