55512153515 has 64 divisors (see below), whose sum is σ = 86877536256. Its totient is φ = 33044723712.

The previous prime is 55512153509. The next prime is 55512153523. The reversal of 55512153515 is 51535121555.

It is not a de Polignac number, because 55512153515 - 2⁸ = 55512153259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15491414 + ... + 15494996.

It is an arithmetic number, because the mean of its divisors is an integer number (1357461504).

Almost surely, 2^55512153515 is an apocalyptic number.

55512153515 is a deficient number, since it is larger than the sum of its proper divisors (31365382741).

55512153515 is a wasteful number, since it uses less digits than its factorization.

55512153515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628.

The product of its digits is 93750, while the sum is 38.

The spelling of 55512153515 in words is "fifty-five billion, five hundred twelve million, one hundred fifty-three thousand, five hundred fifteen".