2057816522 has 4 divisors (see below), whose sum is σ = 3086724786. Its totient is φ = 1028908260.

The previous prime is 2057816507. The next prime is 2057816533. The reversal of 2057816522 is 2256187502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1884341281 + 173475241 = 43409^2 + 13171^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514454129 + ... + 514454132.

Almost surely, 2^2057816522 is an apocalyptic number.

2057816522 is a deficient number, since it is larger than the sum of its proper divisors (1028908264).

2057816522 is a wasteful number, since it uses less digits than its factorization.

2057816522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028908263.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 2057816522 is about 45363.1626102061. The cubic root of 2057816522 is about 1271.9466132183.

The spelling of 2057816522 in words is "two billion, fifty-seven million, eight hundred sixteen thousand, five hundred twenty-two".