55531343 has 16 divisors (see below), whose sum is σ = 65432640. Its totient is φ = 46137600.

The previous prime is 55531321. The next prime is 55531351. The reversal of 55531343 is 34313555.

It is a cyclic number.

It is not a de Polignac number, because 55531343 - 2⁶ = 55531279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55531373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51413 + ... + 52481.

It is an arithmetic number, because the mean of its divisors is an integer number (4089540).

Almost surely, 2^55531343 is an apocalyptic number.

55531343 is a deficient number, since it is larger than the sum of its proper divisors (9901297).

55531343 is a wasteful number, since it uses less digits than its factorization.

55531343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298.

The product of its digits is 13500, while the sum is 29.

The square root of 55531343 is about 7451.9355203866. The cubic root of 55531343 is about 381.5159732151.

Adding to 55531343 its reverse (34313555), we get a palindrome (89844898).

The spelling of 55531343 in words is "fifty-five million, five hundred thirty-one thousand, three hundred forty-three".