55518592 has 64 divisors (see below), whose sum is σ = 115668000. Its totient is φ = 26521600.

The previous prime is 55518581. The next prime is 55518599. The reversal of 55518592 is 29581555.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55518599) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 372534 + ... + 372682.

Almost surely, 2^55518592 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 55518592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57834000).

55518592 is an abundant number, since it is smaller than the sum of its proper divisors (60149408).

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

55518592 is a wasteful number, since it uses less digits than its factorization.

55518592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 263 counting only the distinct ones).

The product of its digits is 90000, while the sum is 40.

The square root of 55518592 is about 7451.0799217295. The cubic root of 55518592 is about 381.4867699922.

The spelling of 55518592 in words is "fifty-five million, five hundred eighteen thousand, five hundred ninety-two".