55244445531 has 8 divisors (see below), whose sum is σ = 80355557184. Its totient is φ = 33481482120.

The previous prime is 55244445527. The next prime is 55244445533. The reversal of 55244445531 is 13554444255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55244445531 - 2² = 55244445527 is a prime.

It is a super-2 number, since 2×55244445531² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (55244445533) 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, 837037021 + ... + 837037086.

It is an arithmetic number, because the mean of its divisors is an integer number (10044444648).

Almost surely, 2^55244445531 is an apocalyptic number.

55244445531 is a deficient number, since it is larger than the sum of its proper divisors (25111111653).

55244445531 is a wasteful number, since it uses less digits than its factorization.

55244445531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674074121.

The product of its digits is 960000, while the sum is 42.

Adding to 55244445531 its reverse (13554444255), we get a palindrome (68798889786).

The spelling of 55244445531 in words is "fifty-five billion, two hundred forty-four million, four hundred forty-five thousand, five hundred thirty-one".