2551945523 has 2 divisors, whose sum is σ = 2551945524. Its totient is φ = 2551945522.

The previous prime is 2551945507. The next prime is 2551945573. The reversal of 2551945523 is 3255491552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2551945523 - 2⁴ = 2551945507 is a prime.

It is not a weakly prime, because it can be changed into another prime (2551945573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275972761 + 1275972762.

It is an arithmetic number, because the mean of its divisors is an integer number (1275972762).

Almost surely, 2^2551945523 is an apocalyptic number.

2551945523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551945523 is an equidigital number, since it uses as much as digits as its factorization.

2551945523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270000, while the sum is 41.

The square root of 2551945523 is about 50516.7845671119. The cubic root of 2551945523 is about 1366.5445665324.

The spelling of 2551945523 in words is "two billion, five hundred fifty-one million, nine hundred forty-five thousand, five hundred twenty-three".