55256718 has 64 divisors (see below), whose sum is σ = 127526400. Its totient is φ = 15797760.

The previous prime is 55256711. The next prime is 55256723. The reversal of 55256718 is 81765255.

55256718 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55256711) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 134898 + ... + 135306.

It is an arithmetic number, because the mean of its divisors is an integer number (1992600).

Almost surely, 2^55256718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55256718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63763200).

55256718 is an abundant number, since it is smaller than the sum of its proper divisors (72269682).

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

55256718 is a wasteful number, since it uses less digits than its factorization.

55256718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537.

The product of its digits is 84000, while the sum is 39.

The square root of 55256718 is about 7433.4862615061. The cubic root of 55256718 is about 380.8860165641.

The spelling of 55256718 in words is "fifty-five million, two hundred fifty-six thousand, seven hundred eighteen".