55240325443 has 4 divisors (see below), whose sum is σ = 55313881888. Its totient is φ = 55166769000.

The previous prime is 55240325429. The next prime is 55240325449. The reversal of 55240325443 is 34452304255.

55240325443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55240325443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55240325449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36777096 + ... + 36778597.

It is an arithmetic number, because the mean of its divisors is an integer number (13828470472).

Almost surely, 2^55240325443 is an apocalyptic number.

55240325443 is a deficient number, since it is larger than the sum of its proper divisors (73556445).

55240325443 is an equidigital number, since it uses as much as digits as its factorization.

55240325443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73556444.

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 55240325443 its reverse (34452304255), we get a palindrome (89692629698).

It can be divided in two parts, 5524032 and 5443, that added together give a triangular number (5529475 = T₃₃₂₅).

The spelling of 55240325443 in words is "fifty-five billion, two hundred forty million, three hundred twenty-five thousand, four hundred forty-three".