2545647080 has 16 divisors (see below), whose sum is σ = 5727706020. Its totient is φ = 1018258816.

The previous prime is 2545647067. The next prime is 2545647161. The reversal of 2545647080 is 807465452.

It can be written as a sum of positive squares in 2 ways, for example, as 2447676676 + 97970404 = 49474^2 + 9898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31820549 + ... + 31820628.

Almost surely, 2^2545647080 is an apocalyptic number.

2545647080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545647080 is an abundant number, since it is smaller than the sum of its proper divisors (3182058940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2545647080 is a wasteful number, since it uses less digits than its factorization.

2545647080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63641188 (or 63641184 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 2545647080 is about 50454.4059523051. The cubic root of 2545647080 is about 1365.4193865791.

The spelling of 2545647080 in words is "two billion, five hundred forty-five million, six hundred forty-seven thousand, eighty".