55433376 has 96 divisors (see below), whose sum is σ = 163840320. Its totient is φ = 18231552.

The previous prime is 55433347. The next prime is 55433377. The reversal of 55433376 is 67333455.

55433376 is a `hidden beast` number, since 554 + 3 + 33 + 76 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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 55433376.

It is not an unprimeable number, because it can be changed into a prime (55433377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71326 + ... + 72098.

It is an arithmetic number, because the mean of its divisors is an integer number (1706670).

Almost surely, 2^55433376 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 55433376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81920160).

55433376 is an abundant number, since it is smaller than the sum of its proper divisors (108406944).

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

55433376 is a wasteful number, since it uses less digits than its factorization.

55433376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 861 counting only the distinct ones).

The product of its digits is 113400, while the sum is 36.

The square root of 55433376 is about 7445.3593600309. The cubic root of 55433376 is about 381.2914875214.

It can be divided in two parts, 554 and 33376, that added together give a triangular number (33930 = T₂₆₀).

The spelling of 55433376 in words is "fifty-five million, four hundred thirty-three thousand, three hundred seventy-six".