2215443537 has 12 divisors (see below), whose sum is σ = 3205942480. Its totient is φ = 1474258968.

The previous prime is 2215443533. The next prime is 2215443539. The reversal of 2215443537 is 7353445122.

2215443537 is a `hidden beast` number, since 2 + 215 + 4 + 435 + 3 + 7 = 666.

It is not a de Polignac number, because 2215443537 - 2² = 2215443533 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2215443533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220087 + ... + 229932.

Almost surely, 2^2215443537 is an apocalyptic number.

It is an amenable number.

2215443537 is a deficient number, since it is larger than the sum of its proper divisors (990498943).

2215443537 is a wasteful number, since it uses less digits than its factorization.

2215443537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450572 (or 450569 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 2215443537 is about 47068.4983508078. The cubic root of 2215443537 is about 1303.6276461491.

Adding to 2215443537 its reverse (7353445122), we get a palindrome (9568888659).

The spelling of 2215443537 in words is "two billion, two hundred fifteen million, four hundred forty-three thousand, five hundred thirty-seven".