2856013057 has 4 divisors (see below), whose sum is σ = 2884290516. Its totient is φ = 2827735600.

The previous prime is 2856013051. The next prime is 2856013079. The reversal of 2856013057 is 7503106582.

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 1664313616 + 1191699441 = 40796^2 + 34521^2 .

It is a cyclic number.

It is not a de Polignac number, because 2856013057 - 2¹¹ = 2856011009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2856013051) 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, 14138578 + ... + 14138779.

It is an arithmetic number, because the mean of its divisors is an integer number (721072629).

Almost surely, 2^2856013057 is an apocalyptic number.

It is an amenable number.

2856013057 is a deficient number, since it is larger than the sum of its proper divisors (28277459).

2856013057 is a wasteful number, since it uses less digits than its factorization.

2856013057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28277458.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2856013057 is about 53441.6790248959. The cubic root of 2856013057 is about 1418.7963510845.

The spelling of 2856013057 in words is "two billion, eight hundred fifty-six million, thirteen thousand, fifty-seven".