55888040 has 64 divisors (see below), whose sum is σ = 139829760. Its totient is φ = 19964160.

The previous prime is 55888039. The next prime is 55888057. The reversal of 55888040 is 4088855.

It is a junction number, because it is equal to n+sod(n) for n = 55887985 and 55888003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14387 + ... + 17853.

It is an arithmetic number, because the mean of its divisors is an integer number (2184840).

Almost surely, 2^55888040 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 55888040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69914880).

55888040 is an abundant number, since it is smaller than the sum of its proper divisors (83941720).

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

55888040 is a wasteful number, since it uses less digits than its factorization.

55888040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522 (or 3518 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 38.

The square root of 55888040 is about 7475.8303886592. The cubic root of 55888040 is about 382.3311000495.

The spelling of 55888040 in words is "fifty-five million, eight hundred eighty-eight thousand, forty".