2550646543 has 4 divisors (see below), whose sum is σ = 2574047080. Its totient is φ = 2527246008.

The previous prime is 2550646487. The next prime is 2550646559. The reversal of 2550646543 is 3456460552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2550646543 - 2²⁵ = 2517092111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2550646496 and 2550646505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550656543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11700105 + ... + 11700322.

It is an arithmetic number, because the mean of its divisors is an integer number (643511770).

Almost surely, 2^2550646543 is an apocalyptic number.

2550646543 is a deficient number, since it is larger than the sum of its proper divisors (23400537).

2550646543 is a wasteful number, since it uses less digits than its factorization.

2550646543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23400536.

The product of its (nonzero) digits is 432000, while the sum is 40.

The square root of 2550646543 is about 50503.9260157069. The cubic root of 2550646543 is about 1366.3126630275.

The spelling of 2550646543 in words is "two billion, five hundred fifty million, six hundred forty-six thousand, five hundred forty-three".