55474434 has 48 divisors (see below), whose sum is σ = 128044800. Its totient is φ = 17297280.

The previous prime is 55474423. The next prime is 55474453. The reversal of 55474434 is 43447455.

55474434 is a `hidden beast` number, since 554 + 74 + 4 + 34 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60439 + ... + 61349.

It is an arithmetic number, because the mean of its divisors is an integer number (2667600).

Almost surely, 2^55474434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55474434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64022400).

55474434 is an abundant number, since it is smaller than the sum of its proper divisors (72570366).

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

55474434 is a wasteful number, since it uses less digits than its factorization.

55474434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1132 counting only the distinct ones).

The product of its digits is 134400, while the sum is 36.

The square root of 55474434 is about 7448.1161376552. The cubic root of 55474434 is about 381.3856017147.

The spelling of 55474434 in words is "fifty-five million, four hundred seventy-four thousand, four hundred thirty-four".