21552107288 has 16 divisors (see below), whose sum is σ = 40563856080. Its totient is φ = 10735079008.

The previous prime is 21552107267. The next prime is 21552107321. The reversal of 21552107288 is 88270125512.

It is a super-3 number, since 3×21552107288³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5119595 + ... + 5123802.

It is an arithmetic number, because the mean of its divisors is an integer number (2535241005).

Almost surely, 2^21552107288 is an apocalyptic number.

It is an amenable number.

21552107288 is a deficient number, since it is larger than the sum of its proper divisors (19011748792).

21552107288 is a wasteful number, since it uses less digits than its factorization.

21552107288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10243666 (or 10243662 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 41.

The spelling of 21552107288 in words is "twenty-one billion, five hundred fifty-two million, one hundred seven thousand, two hundred eighty-eight".