2550555401 has 2 divisors, whose sum is σ = 2550555402. Its totient is φ = 2550555400.

The previous prime is 2550555391. The next prime is 2550555433. The reversal of 2550555401 is 1045550552.

It is an a-pointer prime, because the next prime (2550555433) can be obtained adding 2550555401 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2077536400 + 473019001 = 45580^2 + 21749^2 .

It is a cyclic number.

It is not a de Polignac number, because 2550555401 - 2³⁰ = 1476813577 is a prime.

It is not a weakly prime, because it can be changed into another prime (2550555451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275277700 + 1275277701.

It is an arithmetic number, because the mean of its divisors is an integer number (1275277701).

Almost surely, 2^2550555401 is an apocalyptic number.

It is an amenable number.

2550555401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2550555401 is an equidigital number, since it uses as much as digits as its factorization.

2550555401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 2550555401 is about 50503.0236817559. The cubic root of 2550555401 is about 1366.2963887287.

The spelling of 2550555401 in words is "two billion, five hundred fifty million, five hundred fifty-five thousand, four hundred one".