57545863207 has 4 divisors (see below), whose sum is σ = 65766700816. Its totient is φ = 49325025600.

The previous prime is 57545863157. The next prime is 57545863247. The reversal of 57545863207 is 70236854575.

It is a happy number.

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 57545863207 - 2⁷ = 57545863079 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 (57545863247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4110418794 + ... + 4110418807.

It is an arithmetic number, because the mean of its divisors is an integer number (16441675204).

Almost surely, 2^57545863207 is an apocalyptic number.

57545863207 is a deficient number, since it is larger than the sum of its proper divisors (8220837609).

57545863207 is an equidigital number, since it uses as much as digits as its factorization.

57545863207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8220837608.

The product of its (nonzero) digits is 7056000, while the sum is 52.

The spelling of 57545863207 in words is "fifty-seven billion, five hundred forty-five million, eight hundred sixty-three thousand, two hundred seven".