8555243545 has 4 divisors (see below), whose sum is σ = 10266292260. Its totient is φ = 6844194832.

The previous prime is 8555243537. The next prime is 8555243561. The reversal of 8555243545 is 5453425558.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6555007369 + 2000236176 = 80963^2 + 44724^2 .

It is a cyclic number.

It is not a de Polignac number, because 8555243545 - 2³ = 8555243537 is a prime.

It is a super-2 number, since 2×8555243545² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8555243495 and 8555243504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855524350 + ... + 855524359.

It is an arithmetic number, because the mean of its divisors is an integer number (2566573065).

Almost surely, 2^8555243545 is an apocalyptic number.

It is an amenable number.

8555243545 is a deficient number, since it is larger than the sum of its proper divisors (1711048715).

8555243545 is a wasteful number, since it uses less digits than its factorization.

8555243545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711048714.

The product of its digits is 2400000, while the sum is 46.

The square root of 8555243545 is about 92494.5595427104. The cubic root of 8555243545 is about 2045.2392834984.

The spelling of 8555243545 in words is "eight billion, five hundred fifty-five million, two hundred forty-three thousand, five hundred forty-five".