2545450568 has 8 divisors (see below), whose sum is σ = 4772719830. Its totient is φ = 1272725280.

The previous prime is 2545450561. The next prime is 2545450571. The reversal of 2545450568 is 8650545452.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2477849284 + 67601284 = 49778^2 + 8222^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2545450561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159090653 + ... + 159090668.

Almost surely, 2^2545450568 is an apocalyptic number.

It is an amenable number.

2545450568 is a deficient number, since it is larger than the sum of its proper divisors (2227269262).

2545450568 is a wasteful number, since it uses less digits than its factorization.

2545450568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318181327 (or 318181323 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 44.

The square root of 2545450568 is about 50452.4584931200. The cubic root of 2545450568 is about 1365.3842510202.

The spelling of 2545450568 in words is "two billion, five hundred forty-five million, four hundred fifty thousand, five hundred sixty-eight".