2550278947 has 4 divisors (see below), whose sum is σ = 2550445056. Its totient is φ = 2550112840.

The previous prime is 2550278921. The next prime is 2550278977. The reversal of 2550278947 is 7498720552.

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 2550278947 - 2¹⁹ = 2549754659 is a prime.

It is a super-2 number, since 2×2550278947² = 13007845415022857618, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2550278947.

It is not an unprimeable number, because it can be changed into a prime (2550278917) 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 3 ways as a sum of consecutive naturals, for example, 57379 + ... + 91612.

It is an arithmetic number, because the mean of its divisors is an integer number (637611264).

Almost surely, 2^2550278947 is an apocalyptic number.

2550278947 is a deficient number, since it is larger than the sum of its proper divisors (166109).

2550278947 is a wasteful number, since it uses less digits than its factorization.

2550278947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166108.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 2550278947 is about 50500.2866031471. The cubic root of 2550278947 is about 1366.2470227815.

The spelling of 2550278947 in words is "two billion, five hundred fifty million, two hundred seventy-eight thousand, nine hundred forty-seven".