55535551120 has 40 divisors (see below), whose sum is σ = 147565894464. Its totient is φ = 19040760192.

The previous prime is 55535551109. The next prime is 55535551133. The reversal of 55535551120 is 2115553555.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55535551120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49584754 + ... + 49585873.

Almost surely, 2^55535551120 is an apocalyptic number.

It is an amenable number.

55535551120 is an abundant number, since it is smaller than the sum of its proper divisors (92030343344).

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

55535551120 is a wasteful number, since it uses less digits than its factorization.

55535551120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99170647 (or 99170641 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 55535551120 in words is "fifty-five billion, five hundred thirty-five million, five hundred fifty-one thousand, one hundred twenty".