55040540400343 has 24 divisors (see below), whose sum is σ = 58523340839040. Its totient is φ = 51754444909440.

The previous prime is 55040540400341. The next prime is 55040540400379. The reversal of 55040540400343 is 34300404504055.

It is not a de Polignac number, because 55040540400343 - 2¹ = 55040540400341 is a prime.

It is a super-2 number, since 2×55040540400343² (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 (55040540400341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1697560830 + ... + 1697593252.

It is an arithmetic number, because the mean of its divisors is an integer number (2438472534960).

Almost surely, 2^{55040540400343} is an apocalyptic number.

55040540400343 is a deficient number, since it is larger than the sum of its proper divisors (3482800438697).

55040540400343 is a wasteful number, since it uses less digits than its factorization.

55040540400343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37767 (or 37750 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 55040540400343 its reverse (34300404504055), we get a palindrome (89340944904398).

The spelling of 55040540400343 in words is "fifty-five trillion, forty billion, five hundred forty million, four hundred thousand, three hundred forty-three".