2215541504 has 54 divisors (see below), whose sum is σ = 4829912724. Its totient is φ = 1005928960.

The previous prime is 2215541501. The next prime is 2215541527. The reversal of 2215541504 is 4051455122.

It is not an unprimeable number, because it can be changed into a prime (2215541501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2497349 + ... + 2498235.

Almost surely, 2^2215541504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215541504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2414956362).

2215541504 is an abundant number, since it is smaller than the sum of its proper divisors (2614371220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2215541504 is an frugal number, since it uses more digits than its factorization.

2215541504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801 (or 900 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 2215541504 is about 47069.5390247238. The cubic root of 2215541504 is about 1303.6468613544.

Adding to 2215541504 its reverse (4051455122), we get a palindrome (6266996626).

The spelling of 2215541504 in words is "two billion, two hundred fifteen million, five hundred forty-one thousand, five hundred four".