57378565 has 4 divisors (see below), whose sum is σ = 68854284. Its totient is φ = 45902848.

The previous prime is 57378547. The next prime is 57378571. The reversal of 57378565 is 56587375.

57378565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 18515809 + 38862756 = 4303^2 + 6234^2 .

It is a cyclic number.

It is not a de Polignac number, because 57378565 - 2¹³ = 57370373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5737852 + ... + 5737861.

It is an arithmetic number, because the mean of its divisors is an integer number (17213571).

Almost surely, 2^57378565 is an apocalyptic number.

It is an amenable number.

57378565 is a deficient number, since it is larger than the sum of its proper divisors (11475719).

57378565 is a wasteful number, since it uses less digits than its factorization.

57378565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11475718.

The product of its digits is 882000, while the sum is 46.

The square root of 57378565 is about 7574.8640251822. The cubic root of 57378565 is about 385.7002267722.

The spelling of 57378565 in words is "fifty-seven million, three hundred seventy-eight thousand, five hundred sixty-five".