55375056 has 160 divisors (see below), whose sum is σ = 178083840. Its totient is φ = 16329600.

The previous prime is 55375049. The next prime is 55375057. The reversal of 55375056 is 65057355.

55375056 is a `hidden beast` number, since 553 + 7 + 50 + 56 = 666.

55375056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55375056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55375057) 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, 204201 + ... + 204471.

It is an arithmetic number, because the mean of its divisors is an integer number (1113024).

Almost surely, 2^55375056 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 55375056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89041920).

55375056 is an abundant number, since it is smaller than the sum of its proper divisors (122708784).

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

55375056 is a wasteful number, since it uses less digits than its factorization.

55375056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 55375056 is about 7441.4417957812. The cubic root of 55375056 is about 381.1577250121.

The spelling of 55375056 in words is "fifty-five million, three hundred seventy-five thousand, fifty-six".