2550421643 has 8 divisors (see below), whose sum is σ = 3179746560. Its totient is φ = 1987341480.

The previous prime is 2550421637. The next prime is 2550421669. The reversal of 2550421643 is 3461240552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2550421643 - 2⁸ = 2550421387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2550421613) 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 in 7 ways as a sum of consecutive naturals, for example, 16561103 + ... + 16561256.

It is an arithmetic number, because the mean of its divisors is an integer number (397468320).

Almost surely, 2^2550421643 is an apocalyptic number.

2550421643 is a deficient number, since it is larger than the sum of its proper divisors (629324917).

2550421643 is a wasteful number, since it uses less digits than its factorization.

2550421643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33122377.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2550421643 is about 50501.6994070497. The cubic root of 2550421643 is about 1366.2725042227.

The spelling of 2550421643 in words is "two billion, five hundred fifty million, four hundred twenty-one thousand, six hundred forty-three".