55418688 has 112 divisors (see below), whose sum is σ = 175524160. Its totient is φ = 17044992.

The previous prime is 55418677. The next prime is 55418717. The reversal of 55418688 is 88681455.

55418688 is a `hidden beast` number, since 554 + 18 + 6 + 88 = 666.

55418688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21231 + ... + 23697.

It is an arithmetic number, because the mean of its divisors is an integer number (1567180).

Almost surely, 2^55418688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55418688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87762080).

55418688 is an abundant number, since it is smaller than the sum of its proper divisors (120105472).

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

55418688 is a wasteful number, since it uses less digits than its factorization.

55418688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501 (or 2485 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 55418688 is about 7444.3729084457. The cubic root of 55418688 is about 381.2578080279.

The spelling of 55418688 in words is "fifty-five million, four hundred eighteen thousand, six hundred eighty-eight".