55323432 has 64 divisors (see below), whose sum is σ = 157449600. Its totient is φ = 17988480.

The previous prime is 55323431. The next prime is 55323439. The reversal of 55323432 is 23432355.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 55323396 and 55323405.

It is not an unprimeable number, because it can be changed into a prime (55323431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5733 + ... + 11979.

It is an arithmetic number, because the mean of its divisors is an integer number (2460150).

Almost surely, 2^55323432 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 55323432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78724800).

55323432 is an abundant number, since it is smaller than the sum of its proper divisors (102126168).

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

55323432 is a wasteful number, since it uses less digits than its factorization.

55323432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6303 (or 6293 counting only the distinct ones).

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

The square root of 55323432 is about 7437.9723043313. The cubic root of 55323432 is about 381.0392420365.

Adding to 55323432 its reverse (23432355), we get a palindrome (78755787).

It can be divided in two parts, 55323 and 432, that added together give a palindrome (55755).

The spelling of 55323432 in words is "fifty-five million, three hundred twenty-three thousand, four hundred thirty-two".