55320511521330 has 48 divisors (see below), whose sum is σ = 156909087226944. Its totient is φ = 13411033095840.

The previous prime is 55320511521329. The next prime is 55320511521347. The reversal of 55320511521330 is 3312511502355.

55320511521330 is a `hidden beast` number, since 5 + 5 + 3 + 2 + 0 + 511 + 5 + 2 + 133 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27939651294 + ... + 27939653273.

It is an arithmetic number, because the mean of its divisors is an integer number (3268939317228).

Almost surely, 2^{55320511521330} is an apocalyptic number.

55320511521330 is an abundant number, since it is smaller than the sum of its proper divisors (101588575705614).

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

55320511521330 is a wasteful number, since it uses less digits than its factorization.

55320511521330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55879304591 (or 55879304588 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 55320511521330 in words is "fifty-five trillion, three hundred twenty billion, five hundred eleven million, five hundred twenty-one thousand, three hundred thirty".