55394064 has 80 divisors (see below), whose sum is σ = 173471040. Its totient is φ = 16784640.

The previous prime is 55394057. The next prime is 55394077. The reversal of 55394064 is 46049355.

It is a happy number.

55394064 is a `hidden beast` number, since 553 + 9 + 40 + 64 = 666.

55394064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1077 + ... + 10580.

It is an arithmetic number, because the mean of its divisors is an integer number (2168388).

Almost surely, 2^55394064 is an apocalyptic number.

55394064 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55394064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86735520).

55394064 is an abundant number, since it is smaller than the sum of its proper divisors (118076976).

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

55394064 is a wasteful number, since it uses less digits than its factorization.

55394064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11685 (or 11673 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 55394064 is about 7442.7188580518. The cubic root of 55394064 is about 381.2013319942.

The spelling of 55394064 in words is "fifty-five million, three hundred ninety-four thousand, sixty-four".