55443534 has 16 divisors (see below), whose sum is σ = 114711120. Its totient is φ = 17843840.

The previous prime is 55443533. The next prime is 55443569. The reversal of 55443534 is 43534455.

It is a junction number, because it is equal to n+sod(n) for n = 55443495 and 55443504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55443533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159147 + ... + 159494.

It is an arithmetic number, because the mean of its divisors is an integer number (7169445).

Almost surely, 2^55443534 is an apocalyptic number.

55443534 is an abundant number, since it is smaller than the sum of its proper divisors (59267586).

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

55443534 is a wasteful number, since it uses less digits than its factorization.

55443534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318675.

The product of its digits is 72000, while the sum is 33.

The square root of 55443534 is about 7446.0414986757. The cubic root of 55443534 is about 381.3147762730.

Adding to 55443534 its reverse (43534455), we get a palindrome (98977989).

The spelling of 55443534 in words is "fifty-five million, four hundred forty-three thousand, five hundred thirty-four".