2550969658249 has 4 divisors (see below), whose sum is σ = 2551580380564. Its totient is φ = 2550358935936.

The previous prime is 2550969658243. The next prime is 2550969658267. The reversal of 2550969658249 is 9428569690552.

It is a happy number.

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 1061996203024 + 1488973455225 = 1030532^2 + 1220235^2 .

It is a cyclic number.

It is not a de Polignac number, because 2550969658249 - 2²⁷ = 2550835440521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2550969658243) 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, 305354892 + ... + 305363245.

It is an arithmetic number, because the mean of its divisors is an integer number (637895095141).

Almost surely, 2^{2550969658249} is an apocalyptic number.

It is an amenable number.

2550969658249 is a deficient number, since it is larger than the sum of its proper divisors (610722315).

2550969658249 is an equidigital number, since it uses as much as digits as its factorization.

2550969658249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610722314.

The product of its (nonzero) digits is 419904000, while the sum is 70.

The spelling of 2550969658249 in words is "two trillion, five hundred fifty billion, nine hundred sixty-nine million, six hundred fifty-eight thousand, two hundred forty-nine".