57012793 has 4 divisors (see below), whose sum is σ = 57112180. Its totient is φ = 56913408.

The previous prime is 57012763. The next prime is 57012803. The reversal of 57012793 is 39721075.

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 30880249 + 26132544 = 5557^2 + 5112^2 .

It is a cyclic number.

It is not a de Polignac number, because 57012793 - 2¹³ = 57004601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57012763) 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, 48828 + ... + 49981.

It is an arithmetic number, because the mean of its divisors is an integer number (14278045).

Almost surely, 2^57012793 is an apocalyptic number.

It is an amenable number.

57012793 is a deficient number, since it is larger than the sum of its proper divisors (99387).

57012793 is an equidigital number, since it uses as much as digits as its factorization.

57012793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99386.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 57012793 is about 7550.6816248601. The cubic root of 57012793 is about 384.8789027137.

The spelling of 57012793 in words is "fifty-seven million, twelve thousand, seven hundred ninety-three".