55520118 has 12 divisors (see below), whose sum is σ = 120293628. Its totient is φ = 18506700.

The previous prime is 55520107. The next prime is 55520149. The reversal of 55520118 is 81102555.

It is a junction number, because it is equal to n+sod(n) for n = 55520091 and 55520100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1542208 + ... + 1542243.

It is an arithmetic number, because the mean of its divisors is an integer number (10024469).

Almost surely, 2^55520118 is an apocalyptic number.

55520118 is an abundant number, since it is smaller than the sum of its proper divisors (64773510).

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

55520118 is a wasteful number, since it uses less digits than its factorization.

55520118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084459 (or 3084456 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 55520118 is about 7451.1823222895. The cubic root of 55520118 is about 381.4902651785.

The spelling of 55520118 in words is "fifty-five million, five hundred twenty thousand, one hundred eighteen".