55215353324530 has 32 divisors (see below), whose sum is σ = 113594495529600. Its totient is φ = 18929540643840.

The previous prime is 55215353324501. The next prime is 55215353324581. The reversal of 55215353324530 is 3542335351255.

It is a super-2 number, since 2×55215353324530² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29022255 + ... + 30866194.

It is an arithmetic number, because the mean of its divisors is an integer number (3549827985300).

Almost surely, 2^{55215353324530} is an apocalyptic number.

55215353324530 is an abundant number, since it is smaller than the sum of its proper divisors (58379142205070).

55215353324530 is a wasteful number, since it uses less digits than its factorization.

55215353324530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59901634.

The product of its (nonzero) digits is 4050000, while the sum is 46.

Adding to 55215353324530 its reverse (3542335351255), we get a palindrome (58757688675785).

The spelling of 55215353324530 in words is "fifty-five trillion, two hundred fifteen billion, three hundred fifty-three million, three hundred twenty-four thousand, five hundred thirty".