2153214455 has 16 divisors (see below), whose sum is σ = 2982222144. Its totient is φ = 1461868800.

The previous prime is 2153214451. The next prime is 2153214487. The reversal of 2153214455 is 5544123512.

It is not a de Polignac number, because 2153214455 - 2² = 2153214451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153214451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301022 + ... + 308091.

It is an arithmetic number, because the mean of its divisors is an integer number (186388884).

Almost surely, 2^2153214455 is an apocalyptic number.

2153214455 is a deficient number, since it is larger than the sum of its proper divisors (829007689).

2153214455 is a wasteful number, since it uses less digits than its factorization.

2153214455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609226.

The product of its digits is 24000, while the sum is 32.

The square root of 2153214455 is about 46402.7418909702. The cubic root of 2153214455 is about 1291.3057817375.

Adding to 2153214455 its reverse (5544123512), we get a palindrome (7697337967).

The spelling of 2153214455 in words is "two billion, one hundred fifty-three million, two hundred fourteen thousand, four hundred fifty-five".