57015745 has 4 divisors (see below), whose sum is σ = 68418900. Its totient is φ = 45612592.

The previous prime is 57015737. The next prime is 57015797. The reversal of 57015745 is 54751075.

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 10284849 + 46730896 = 3207^2 + 6836^2 .

It is a cyclic number.

It is not a de Polignac number, because 57015745 - 2³ = 57015737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57015745.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5701570 + ... + 5701579.

It is an arithmetic number, because the mean of its divisors is an integer number (17104725).

Almost surely, 2^57015745 is an apocalyptic number.

It is an amenable number.

57015745 is a deficient number, since it is larger than the sum of its proper divisors (11403155).

57015745 is a wasteful number, since it uses less digits than its factorization.

57015745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11403154.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 57015745 is about 7550.8771013704. The cubic root of 57015745 is about 384.8855453334.

The spelling of 57015745 in words is "fifty-seven million, fifteen thousand, seven hundred forty-five".