57751745 has 4 divisors (see below), whose sum is σ = 69302100. Its totient is φ = 46201392.

The previous prime is 57751741. The next prime is 57751747. The reversal of 57751745 is 54715775.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38241856 + 19509889 = 6184^2 + 4417^2 .

It is a cyclic number.

It is not a de Polignac number, because 57751745 - 2² = 57751741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57751741) 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, 5775170 + ... + 5775179.

It is an arithmetic number, because the mean of its divisors is an integer number (17325525).

Almost surely, 2^57751745 is an apocalyptic number.

It is an amenable number.

57751745 is a deficient number, since it is larger than the sum of its proper divisors (11550355).

57751745 is a wasteful number, since it uses less digits than its factorization.

57751745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11550354.

The product of its digits is 171500, while the sum is 41.

The square root of 57751745 is about 7599.4568884888. The cubic root of 57751745 is about 386.5345957818.

The spelling of 57751745 in words is "fifty-seven million, seven hundred fifty-one thousand, seven hundred forty-five".