2215533044 has 6 divisors (see below), whose sum is σ = 3877182834. Its totient is φ = 1107766520.

The previous prime is 2215533043. The next prime is 2215533049. The reversal of 2215533044 is 4403355122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2026800400 + 188732644 = 45020^2 + 13738^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2215532998 and 2215533016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215533043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276941627 + ... + 276941634.

It is an arithmetic number, because the mean of its divisors is an integer number (646197139).

Almost surely, 2^2215533044 is an apocalyptic number.

It is an amenable number.

2215533044 is a deficient number, since it is larger than the sum of its proper divisors (1661649790).

2215533044 is a wasteful number, since it uses less digits than its factorization.

2215533044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553883265 (or 553883263 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2215533044 is about 47069.4491576012. The cubic root of 2215533044 is about 1303.6452020360.

Adding to 2215533044 its reverse (4403355122), we get a palindrome (6618888166).

The spelling of 2215533044 in words is "two billion, two hundred fifteen million, five hundred thirty-three thousand, forty-four".