20015045225 has 12 divisors (see below), whose sum is σ = 28364178624. Its totient is φ = 13724602320.

The previous prime is 20015045213. The next prime is 20015045249. The reversal of 20015045225 is 52254051002.

It is not a de Polignac number, because 20015045225 - 2⁶ = 20015045161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20015045194 and 20015045203.

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 11 ways as a sum of consecutive naturals, for example, 57185669 + ... + 57186018.

It is an arithmetic number, because the mean of its divisors is an integer number (2363681552).

Almost surely, 2^20015045225 is an apocalyptic number.

20015045225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20015045225 is a deficient number, since it is larger than the sum of its proper divisors (8349133399).

20015045225 is a wasteful number, since it uses less digits than its factorization.

20015045225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114371704 (or 114371699 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 20015045225 its reverse (52254051002), we get a palindrome (72269096227).

The spelling of 20015045225 in words is "twenty billion, fifteen million, forty-five thousand, two hundred twenty-five".