55144040343 has 64 divisors (see below), whose sum is σ = 89942814720. Its totient is φ = 29334638592.

The previous prime is 55144040339. The next prime is 55144040381. The reversal of 55144040343 is 34304044155.

It is a happy number.

It is not a de Polignac number, because 55144040343 - 2² = 55144040339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55144040143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37083346 + ... + 37084832.

It is an arithmetic number, because the mean of its divisors is an integer number (1405356480).

Almost surely, 2^55144040343 is an apocalyptic number.

55144040343 is a deficient number, since it is larger than the sum of its proper divisors (34798774377).

55144040343 is a wasteful number, since it uses less digits than its factorization.

55144040343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 55144040343 its reverse (34304044155), we get a palindrome (89448084498).

The spelling of 55144040343 in words is "fifty-five billion, one hundred forty-four million, forty thousand, three hundred forty-three".