55731403143 has 48 divisors (see below), whose sum is σ = 89127045280. Its totient is φ = 33335338752.

The previous prime is 55731403139. The next prime is 55731403223. The reversal of 55731403143 is 34130413755.

55731403143 is a `hidden beast` number, since 5 + 573 + 1 + 40 + 3 + 1 + 43 = 666.

It is not a de Polignac number, because 55731403143 - 2² = 55731403139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55731403098 and 55731403107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55731403243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4621680 + ... + 4633722.

Almost surely, 2^55731403143 is an apocalyptic number.

55731403143 is a deficient number, since it is larger than the sum of its proper divisors (33395642137).

55731403143 is a wasteful number, since it uses less digits than its factorization.

55731403143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13168 (or 13165 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

Adding to 55731403143 its reverse (34130413755), we get a palindrome (89861816898).

The spelling of 55731403143 in words is "fifty-five billion, seven hundred thirty-one million, four hundred three thousand, one hundred forty-three".