55258764 has 72 divisors (see below), whose sum is σ = 149257920. Its totient is φ = 15855840.

The previous prime is 55258747. The next prime is 55258799. The reversal of 55258764 is 46785255.

55258764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 26587 + ... + 28589.

Almost surely, 2^55258764 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 55258764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74628960).

55258764 is an abundant number, since it is smaller than the sum of its proper divisors (93999156).

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

55258764 is a wasteful number, since it uses less digits than its factorization.

55258764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2038 counting only the distinct ones).

The product of its digits is 336000, while the sum is 42.

The square root of 55258764 is about 7433.6238807193. The cubic root of 55258764 is about 380.8907175501.

The spelling of 55258764 in words is "fifty-five million, two hundred fifty-eight thousand, seven hundred sixty-four".