55144154415431 has 8 divisors (see below), whose sum is σ = 58390656105600. Its totient is φ = 51897955825408.

The previous prime is 55144154415403. The next prime is 55144154415439. The reversal of 55144154415431 is 13451445144155.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55144154415431 - 2¹⁰ = 55144154414407 is a prime.

It is a super-2 number, since 2×55144154415431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55144154415439) 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, 75400406 + ... + 76128243.

It is an arithmetic number, because the mean of its divisors is an integer number (7298832013200).

Almost surely, 2^{55144154415431} is an apocalyptic number.

55144154415431 is a deficient number, since it is larger than the sum of its proper divisors (3246501690169).

55144154415431 is a wasteful number, since it uses less digits than its factorization.

55144154415431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151550073.

The product of its digits is 1920000, while the sum is 47.

Adding to 55144154415431 its reverse (13451445144155), we get a palindrome (68595599559586).

The spelling of 55144154415431 in words is "fifty-five trillion, one hundred forty-four billion, one hundred fifty-four million, four hundred fifteen thousand, four hundred thirty-one".