57034150721 has 4 divisors (see below), whose sum is σ = 58575614292. Its totient is φ = 55492687152.

The previous prime is 57034150717. The next prime is 57034150751. The reversal of 57034150721 is 12705143075.

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 33644730625 + 23389420096 = 183425^2 + 152936^2 .

It is a cyclic number.

It is not a de Polignac number, because 57034150721 - 2² = 57034150717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57034150751) by changing a digit.

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, 770731730 + ... + 770731803.

It is an arithmetic number, because the mean of its divisors is an integer number (14643903573).

Almost surely, 2^57034150721 is an apocalyptic number.

It is an amenable number.

57034150721 is a deficient number, since it is larger than the sum of its proper divisors (1541463571).

57034150721 is a wasteful number, since it uses less digits than its factorization.

57034150721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541463570.

The product of its (nonzero) digits is 29400, while the sum is 35.

Adding to 57034150721 its reverse (12705143075), we get a palindrome (69739293796).

The spelling of 57034150721 in words is "fifty-seven billion, thirty-four million, one hundred fifty thousand, seven hundred twenty-one".