2215444455 has 48 divisors (see below), whose sum is σ = 4398151680. Its totient is φ = 1010591424.

The previous prime is 2215444447. The next prime is 2215444463. The reversal of 2215444455 is 5544445122.

2215444455 is a `hidden beast` number, since 2 + 21 + 544 + 44 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (2215444447) and next prime (2215444463).

It is not a de Polignac number, because 2215444455 - 2³ = 2215444447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143544 + ... + 158226.

It is an arithmetic number, because the mean of its divisors is an integer number (91628160).

Almost surely, 2^2215444455 is an apocalyptic number.

2215444455 is a deficient number, since it is larger than the sum of its proper divisors (2182707225).

2215444455 is a wasteful number, since it uses less digits than its factorization.

2215444455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15180 (or 15177 counting only the distinct ones).

The product of its digits is 128000, while the sum is 36.

The square root of 2215444455 is about 47068.5081025520. The cubic root of 2215444455 is about 1303.6278262079.

Adding to 2215444455 its reverse (5544445122), we get a palindrome (7759889577).

The spelling of 2215444455 in words is "two billion, two hundred fifteen million, four hundred forty-four thousand, four hundred fifty-five".