55131332143 has 8 divisors (see below), whose sum is σ = 57665003616. Its totient is φ = 52609048800.

The previous prime is 55131332059. The next prime is 55131332147. The reversal of 55131332143 is 34123313155.

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 55131332143 - 2²⁵ = 55097777711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55131332147) 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, 2837128 + ... + 2856493.

It is an arithmetic number, because the mean of its divisors is an integer number (7208125452).

Almost surely, 2^55131332143 is an apocalyptic number.

55131332143 is a deficient number, since it is larger than the sum of its proper divisors (2533671473).

55131332143 is a wasteful number, since it uses less digits than its factorization.

55131332143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694065.

The product of its digits is 16200, while the sum is 31.

Adding to 55131332143 its reverse (34123313155), we get a palindrome (89254645298).

The spelling of 55131332143 in words is "fifty-five billion, one hundred thirty-one million, three hundred thirty-two thousand, one hundred forty-three".