57742807 has 4 divisors (see below), whose sum is σ = 57760560. Its totient is φ = 57725056.

The previous prime is 57742793. The next prime is 57742819. The reversal of 57742807 is 70824775.

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 57742807 - 2¹⁵ = 57710039 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57742807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57742847) 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, 2443 + ... + 11020.

It is an arithmetic number, because the mean of its divisors is an integer number (14440140).

Almost surely, 2^57742807 is an apocalyptic number.

57742807 is a deficient number, since it is larger than the sum of its proper divisors (17753).

57742807 is a wasteful number, since it uses less digits than its factorization.

57742807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17752.

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 57742807 is about 7598.8687973935. The cubic root of 57742807 is about 386.5146539633.

The spelling of 57742807 in words is "fifty-seven million, seven hundred forty-two thousand, eight hundred seven".