2215663224025 has 12 divisors (see below), whose sum is σ = 2909035480572. Its totient is φ = 1668264074240.

The previous prime is 2215663224007. The next prime is 2215663224067. The reversal of 2215663224025 is 5204223665122.

It can be written as a sum of positive squares in 6 ways, for example, as 103779978201 + 2111883245824 = 322149^2 + 1453232^2 .

It is not a de Polignac number, because 2215663224025 - 2⁵ = 2215663223993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2606662192 + ... + 2606663041.

It is an arithmetic number, because the mean of its divisors is an integer number (242419623381).

Almost surely, 2^{2215663224025} is an apocalyptic number.

2215663224025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2215663224025 is a deficient number, since it is larger than the sum of its proper divisors (693372256547).

2215663224025 is a wasteful number, since it uses less digits than its factorization.

2215663224025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5213325260 (or 5213325255 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 2215663224025 its reverse (5204223665122), we get a palindrome (7419886889147).

The spelling of 2215663224025 in words is "two trillion, two hundred fifteen billion, six hundred sixty-three million, two hundred twenty-four thousand, twenty-five".