57660745 has 4 divisors (see below), whose sum is σ = 69192900. Its totient is φ = 46128592.

The previous prime is 57660731. The next prime is 57660749. The reversal of 57660745 is 54706675.

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 13995081 + 43665664 = 3741^2 + 6608^2 .

It is a cyclic number.

It is not a de Polignac number, because 57660745 - 2⁹ = 57660233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57660698 and 57660707.

It is not an unprimeable number, because it can be changed into a prime (57660749) 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, 5766070 + ... + 5766079.

It is an arithmetic number, because the mean of its divisors is an integer number (17298225).

Almost surely, 2^57660745 is an apocalyptic number.

It is an amenable number.

57660745 is a deficient number, since it is larger than the sum of its proper divisors (11532155).

57660745 is a wasteful number, since it uses less digits than its factorization.

57660745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11532154.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 57660745 is about 7593.4672581108. The cubic root of 57660745 is about 386.3314669158.

The spelling of 57660745 in words is "fifty-seven million, six hundred sixty thousand, seven hundred forty-five".