21514052340550 has 48 divisors (see below), whose sum is σ = 49890249176832. Its totient is φ = 6705678650400.

The previous prime is 21514052340533. The next prime is 21514052340569. The reversal of 21514052340550 is 5504325041512.

It is a super-4 number, since 4×21514052340550⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2794028922 + ... + 2794036621.

It is an arithmetic number, because the mean of its divisors is an integer number (1039380191184).

Almost surely, 2^{21514052340550} is an apocalyptic number.

21514052340550 is an abundant number, since it is smaller than the sum of its proper divisors (28376196836282).

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

21514052340550 is a wasteful number, since it uses less digits than its factorization.

21514052340550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5588065573 (or 5588065568 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 21514052340550 in words is "twenty-one trillion, five hundred fourteen billion, fifty-two million, three hundred forty thousand, five hundred fifty".