55451252443 has 4 divisors (see below), whose sum is σ = 58713090840. Its totient is φ = 52189414048.

The previous prime is 55451252419. The next prime is 55451252459. The reversal of 55451252443 is 34425215455.

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

It is a cyclic number.

It is not a de Polignac number, because 55451252443 - 2³³ = 46861317851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55451252396 and 55451252405.

It is not an unprimeable number, because it can be changed into a prime (55451252413) 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, 1630919173 + ... + 1630919206.

It is an arithmetic number, because the mean of its divisors is an integer number (14678272710).

Almost surely, 2^55451252443 is an apocalyptic number.

55451252443 is a deficient number, since it is larger than the sum of its proper divisors (3261838397).

55451252443 is a wasteful number, since it uses less digits than its factorization.

55451252443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261838396.

The product of its digits is 480000, while the sum is 40.

Adding to 55451252443 its reverse (34425215455), we get a palindrome (89876467898).

The spelling of 55451252443 in words is "fifty-five billion, four hundred fifty-one million, two hundred fifty-two thousand, four hundred forty-three".