8555448251 has 4 divisors (see below), whose sum is σ = 9777655152. Its totient is φ = 7333241352.

The previous prime is 8555448221. The next prime is 8555448263. The reversal of 8555448251 is 1528445558.

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 8555448251 - 2²² = 8551253947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8555448196 and 8555448205.

It is not an unprimeable number, because it can be changed into a prime (8555448221) 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, 611103440 + ... + 611103453.

It is an arithmetic number, because the mean of its divisors is an integer number (2444413788).

Almost surely, 2^8555448251 is an apocalyptic number.

8555448251 is a deficient number, since it is larger than the sum of its proper divisors (1222206901).

8555448251 is a wasteful number, since it uses less digits than its factorization.

8555448251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222206900.

The product of its digits is 1280000, while the sum is 47.

The square root of 8555448251 is about 92495.6661200945. Note that the first 3 decimals coincide. The cubic root of 8555448251 is about 2045.2555958886.

The spelling of 8555448251 in words is "eight billion, five hundred fifty-five million, four hundred forty-eight thousand, two hundred fifty-one".