55512153520 has 40 divisors (see below), whose sum is σ = 129177910656. Its totient is φ = 22185566208.

The previous prime is 55512153509. The next prime is 55512153523. The reversal of 55512153520 is 2535121555.

55512153520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (55512153523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208672 + ... + 393151.

Almost surely, 2^55512153520 is an apocalyptic number.

It is an amenable number.

55512153520 is an abundant number, since it is smaller than the sum of its proper divisors (73665757136).

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

55512153520 is a wasteful number, since it uses less digits than its factorization.

55512153520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602989 (or 602983 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 34.

It can be divided in two parts, 555121535 and 20, that added together give a palindrome (555121555).

The spelling of 55512153520 in words is "fifty-five billion, five hundred twelve million, one hundred fifty-three thousand, five hundred twenty".