2215450544 has 20 divisors (see below), whose sum is σ = 4294504896. Its totient is φ = 1107191232.

The previous prime is 2215450537. The next prime is 2215450553. The reversal of 2215450544 is 4450545122.

It is a super-2 number, since 2×2215450544² = 9816442225819791872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2215450544.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1982 + ... + 66594.

Almost surely, 2^2215450544 is an apocalyptic number.

It is an amenable number.

2215450544 is a deficient number, since it is larger than the sum of its proper divisors (2079054352).

2215450544 is a wasteful number, since it uses less digits than its factorization.

2215450544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66764 (or 66758 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 2215450544 is about 47068.5727848211. The cubic root of 2215450544 is about 1303.6290205179.

Adding to 2215450544 its reverse (4450545122), we get a palindrome (6665995666).

The spelling of 2215450544 in words is "two billion, two hundred fifteen million, four hundred fifty thousand, five hundred forty-four".