2551401233 has 2 divisors, whose sum is σ = 2551401234. Its totient is φ = 2551401232.

The previous prime is 2551401227. The next prime is 2551401253. The reversal of 2551401233 is 3321041552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2314764544 + 236636689 = 48112^2 + 15383^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551401233 - 2⁶ = 2551401169 is a prime.

It is not a weakly prime, because it can be changed into another prime (2551401253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275700616 + 1275700617.

It is an arithmetic number, because the mean of its divisors is an integer number (1275700617).

Almost surely, 2^2551401233 is an apocalyptic number.

It is an amenable number.

2551401233 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551401233 is an equidigital number, since it uses as much as digits as its factorization.

2551401233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2551401233 is about 50511.3970604655. The cubic root of 2551401233 is about 1366.4474054421.

Adding to 2551401233 its reverse (3321041552), we get a palindrome (5872442785).

The spelling of 2551401233 in words is "two billion, five hundred fifty-one million, four hundred one thousand, two hundred thirty-three".