2551819241 has 4 divisors (see below), whose sum is σ = 2554543572. Its totient is φ = 2549094912.

The previous prime is 2551819217. The next prime is 2551819253. The reversal of 2551819241 is 1429181552.

2551819241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 68890000 + 2482929241 = 8300^2 + 49829^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551819241 - 2¹⁴ = 2551802857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2551819195 and 2551819204.

It is not an unprimeable number, because it can be changed into a prime (2551819271) 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, 1360760 + ... + 1362633.

It is an arithmetic number, because the mean of its divisors is an integer number (638635893).

Almost surely, 2^2551819241 is an apocalyptic number.

It is an amenable number.

2551819241 is a deficient number, since it is larger than the sum of its proper divisors (2724331).

2551819241 is an equidigital number, since it uses as much as digits as its factorization.

2551819241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724330.

The product of its digits is 28800, while the sum is 38.

The square root of 2551819241 is about 50515.5346502440. The cubic root of 2551819241 is about 1366.5220251908.

The spelling of 2551819241 in words is "two billion, five hundred fifty-one million, eight hundred nineteen thousand, two hundred forty-one".