2215202564 has 12 divisors (see below), whose sum is σ = 3885241500. Its totient is φ = 1105133568.

The previous prime is 2215202503. The next prime is 2215202567. The reversal of 2215202564 is 4652025122.

It can be written as a sum of positive squares in 2 ways, for example, as 1752092164 + 463110400 = 41858^2 + 21520^2 .

It is not an unprimeable number, because it can be changed into a prime (2215202567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614909 + ... + 618500.

It is an arithmetic number, because the mean of its divisors is an integer number (323770125).

Almost surely, 2^2215202564 is an apocalyptic number.

It is an amenable number.

2215202564 is a deficient number, since it is larger than the sum of its proper divisors (1670038936).

2215202564 is a wasteful number, since it uses less digits than its factorization.

2215202564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233862 (or 1233860 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2215202564 is about 47065.9384693432. The cubic root of 2215202564 is about 1303.5803793980.

Adding to 2215202564 its reverse (4652025122), we get a palindrome (6867227686).

The spelling of 2215202564 in words is "two billion, two hundred fifteen million, two hundred two thousand, five hundred sixty-four".