21344055054 has 32 divisors (see below), whose sum is σ = 48800832000. Its totient is φ = 6096498912.

The previous prime is 21344055053. The next prime is 21344055107. The reversal of 21344055054 is 45055044312.

It is a super-2 number, since 2×21344055054² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21344055053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72072 + ... + 218820.

It is an arithmetic number, because the mean of its divisors is an integer number (1525026000).

Almost surely, 2^21344055054 is an apocalyptic number.

21344055054 is an abundant number, since it is smaller than the sum of its proper divisors (27456776946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21344055054 is a wasteful number, since it uses less digits than its factorization.

21344055054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150224.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 21344055054 its reverse (45055044312), we get a palindrome (66399099366).

The spelling of 21344055054 in words is "twenty-one billion, three hundred forty-four million, fifty-five thousand, fifty-four".