6450553057 has 6 divisors (see below), whose sum is σ = 6984918582. Its totient is φ = 5954356512.

The previous prime is 6450553033. The next prime is 6450553063. The reversal of 6450553057 is 7503550546.

It can be written as a sum of positive squares in 3 ways, for example, as 18352656 + 6432200401 = 4284^2 + 80201^2 .

It is not a de Polignac number, because 6450553057 - 2¹⁵ = 6450520289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6450553007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19084308 + ... + 19084645.

It is an arithmetic number, because the mean of its divisors is an integer number (1164153097).

Almost surely, 2^6450553057 is an apocalyptic number.

It is an amenable number.

6450553057 is a deficient number, since it is larger than the sum of its proper divisors (534365525).

6450553057 is a wasteful number, since it uses less digits than its factorization.

6450553057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38168979 (or 38168966 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 40.

The square root of 6450553057 is about 80315.3351297248. The cubic root of 6450553057 is about 1861.5111872833.

The spelling of 6450553057 in words is "six billion, four hundred fifty million, five hundred fifty-three thousand, fifty-seven".