2550117649 has 4 divisors (see below), whose sum is σ = 2552840164. Its totient is φ = 2547395136.

The previous prime is 2550117637. The next prime is 2550117653. The reversal of 2550117649 is 9467110552.

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 855972049 + 1694145600 = 29257^2 + 41160^2 .

It is a cyclic number.

It is not a de Polignac number, because 2550117649 - 2⁹ = 2550117137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2550117679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1359852 + ... + 1361725.

It is an arithmetic number, because the mean of its divisors is an integer number (638210041).

Almost surely, 2^2550117649 is an apocalyptic number.

It is an amenable number.

2550117649 is a deficient number, since it is larger than the sum of its proper divisors (2722515).

2550117649 is an equidigital number, since it uses as much as digits as its factorization.

2550117649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722514.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 2550117649 is about 50498.6895770573. The cubic root of 2550117649 is about 1366.2182184085.

The spelling of 2550117649 in words is "two billion, five hundred fifty million, one hundred seventeen thousand, six hundred forty-nine".