55511451552032 has 192 divisors, whose sum is σ = 127921641120000. Its totient is φ = 23702679576576.

The previous prime is 55511451552001. The next prime is 55511451552041. The reversal of 55511451552032 is 23025515411555.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4043364944 + ... + 4043378672.

It is an arithmetic number, because the mean of its divisors is an integer number (666258547500).

Almost surely, 2^{55511451552032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55511451552032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63960820560000).

55511451552032 is an abundant number, since it is smaller than the sum of its proper divisors (72410189567968).

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

55511451552032 is a wasteful number, since it uses less digits than its factorization.

55511451552032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15096 (or 15074 counting only the distinct ones).

The product of its (nonzero) digits is 750000, while the sum is 44.

Adding to 55511451552032 its reverse (23025515411555), we get a palindrome (78536966963587).

The spelling of 55511451552032 in words is "fifty-five trillion, five hundred eleven billion, four hundred fifty-one million, five hundred fifty-two thousand, thirty-two".