2015223225 has 12 divisors (see below), whose sum is σ = 3331835856. Its totient is φ = 1074785680.

The previous prime is 2015223211. The next prime is 2015223257. The reversal of 2015223225 is 5223225102.

It is not a de Polignac number, because 2015223225 - 2¹⁹ = 2014698937 is a prime.

It is a super-2 number, since 2×2015223225² = 8122249293158801250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2015223195 and 2015223204.

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, 13434747 + ... + 13434896.

It is an arithmetic number, because the mean of its divisors is an integer number (277652988).

Almost surely, 2^2015223225 is an apocalyptic number.

2015223225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2015223225 is a deficient number, since it is larger than the sum of its proper divisors (1316612631).

2015223225 is a wasteful number, since it uses less digits than its factorization.

2015223225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26869656 (or 26869651 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2015223225 is about 44891.2377307643. The cubic root of 2015223225 is about 1263.1096503344.

Adding to 2015223225 its reverse (5223225102), we get a palindrome (7238448327).

The spelling of 2015223225 in words is "two billion, fifteen million, two hundred twenty-three thousand, two hundred twenty-five".