2506223545 has 16 divisors (see below), whose sum is σ = 3449351808. Its totient is φ = 1712430720.

The previous prime is 2506223513. The next prime is 2506223569. The reversal of 2506223545 is 5453226052.

It is not a de Polignac number, because 2506223545 - 2⁵ = 2506223513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2506223545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117579 + ... + 137248.

It is an arithmetic number, because the mean of its divisors is an integer number (215584488).

Almost surely, 2^2506223545 is an apocalyptic number.

It is an amenable number.

2506223545 is a deficient number, since it is larger than the sum of its proper divisors (943128263).

2506223545 is a wasteful number, since it uses less digits than its factorization.

2506223545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255120.

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 2506223545 is about 50062.1967656235. The cubic root of 2506223545 is about 1358.3340950561.

Adding to 2506223545 its reverse (5453226052), we get a palindrome (7959449597).

The spelling of 2506223545 in words is "two billion, five hundred six million, two hundred twenty-three thousand, five hundred forty-five".