2551551427 has 2 divisors, whose sum is σ = 2551551428. Its totient is φ = 2551551426.

The previous prime is 2551551377. The next prime is 2551551433. The reversal of 2551551427 is 7241551552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2551551427 - 2¹⁹ = 2551027139 is a prime.

It is not a weakly prime, because it can be changed into another prime (2551551467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275775713 + 1275775714.

It is an arithmetic number, because the mean of its divisors is an integer number (1275775714).

Almost surely, 2^2551551427 is an apocalyptic number.

2551551427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551551427 is an equidigital number, since it uses as much as digits as its factorization.

2551551427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70000, while the sum is 37.

The square root of 2551551427 is about 50512.8837723605. The cubic root of 2551551427 is about 1366.4742179209.

The spelling of 2551551427 in words is "two billion, five hundred fifty-one million, five hundred fifty-one thousand, four hundred twenty-seven".