57040273 has 4 divisors (see below), whose sum is σ = 58581940. Its totient is φ = 55498608.

The previous prime is 57040201. The next prime is 57040289. The reversal of 57040273 is 37204075.

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 51437584 + 5602689 = 7172^2 + 2367^2 .

It is a cyclic number.

It is not a de Polignac number, because 57040273 - 2¹⁷ = 56909201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57040073) 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, 770778 + ... + 770851.

It is an arithmetic number, because the mean of its divisors is an integer number (14645485).

Almost surely, 2^57040273 is an apocalyptic number.

It is an amenable number.

57040273 is a deficient number, since it is larger than the sum of its proper divisors (1541667).

57040273 is a wasteful number, since it uses less digits than its factorization.

57040273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541666.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 57040273 is about 7552.5011089043. The cubic root of 57040273 is about 384.9407296176.

The spelling of 57040273 in words is "fifty-seven million, forty thousand, two hundred seventy-three".