2163621053 has 8 divisors (see below), whose sum is σ = 2361000576. Its totient is φ = 1966356000.

The previous prime is 2163621023. The next prime is 2163621073. The reversal of 2163621053 is 3501263612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2163621053 - 2²² = 2159426749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163621023) 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 7 ways as a sum of consecutive naturals, for example, 13628 + ... + 67178.

It is an arithmetic number, because the mean of its divisors is an integer number (295125072).

Almost surely, 2^2163621053 is an apocalyptic number.

It is an amenable number.

2163621053 is a deficient number, since it is larger than the sum of its proper divisors (197379523).

2163621053 is a wasteful number, since it uses less digits than its factorization.

2163621053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57235.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2163621053 is about 46514.7401691120. The cubic root of 2163621053 is about 1293.3827553932.

Adding to 2163621053 its reverse (3501263612), we get a palindrome (5664884665).

The spelling of 2163621053 in words is "two billion, one hundred sixty-three million, six hundred twenty-one thousand, fifty-three".