2551868353 has 2 divisors, whose sum is σ = 2551868354. Its totient is φ = 2551868352.

The previous prime is 2551868339. The next prime is 2551868357. The reversal of 2551868353 is 3538681552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2433646224 + 118222129 = 49332^2 + 10873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2551868353 is a prime.

It is not a weakly prime, because it can be changed into another prime (2551868357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275934176 + 1275934177.

It is an arithmetic number, because the mean of its divisors is an integer number (1275934177).

Almost surely, 2^2551868353 is an apocalyptic number.

It is an amenable number.

2551868353 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551868353 is an equidigital number, since it uses as much as digits as its factorization.

2551868353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864000, while the sum is 46.

The square root of 2551868353 is about 50516.0207557959. The cubic root of 2551868353 is about 1366.5307917729.

The spelling of 2551868353 in words is "two billion, five hundred fifty-one million, eight hundred sixty-eight thousand, three hundred fifty-three".