55033434 has 48 divisors (see below), whose sum is σ = 125116992. Its totient is φ = 17449344.

The previous prime is 55033409. The next prime is 55033441. The reversal of 55033434 is 43433055.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55033398 and 55033407.

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, 126882 + ... + 127314.

It is an arithmetic number, because the mean of its divisors is an integer number (2606604).

Almost surely, 2^55033434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55033434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62558496).

55033434 is an abundant number, since it is smaller than the sum of its proper divisors (70083558).

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

55033434 is a wasteful number, since it uses less digits than its factorization.

55033434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 55033434 is about 7418.4522644552. The cubic root of 55033434 is about 380.3722898078.

Adding to 55033434 its reverse (43433055), we get a palindrome (98466489).

The spelling of 55033434 in words is "fifty-five million, thirty-three thousand, four hundred thirty-four".