55343281 has 16 divisors (see below), whose sum is σ = 65773440. Its totient is φ = 45561600.

The previous prime is 55343269. The next prime is 55343297. The reversal of 55343281 is 18234355.

55343281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55343281 - 2¹³ = 55335089 is a prime.

It is a super-2 number, since 2×55343281² = 6125757503689922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55343261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45481 + ... + 46681.

It is an arithmetic number, because the mean of its divisors is an integer number (4110840).

Almost surely, 2^55343281 is an apocalyptic number.

It is an amenable number.

55343281 is a deficient number, since it is larger than the sum of its proper divisors (10430159).

55343281 is a wasteful number, since it uses less digits than its factorization.

55343281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464.

The product of its digits is 14400, while the sum is 31.

The square root of 55343281 is about 7439.3064864946. The cubic root of 55343281 is about 381.0848064764.

It can be divided in two parts, 553 and 43281, that added together give a palindrome (43834).

The spelling of 55343281 in words is "fifty-five million, three hundred forty-three thousand, two hundred eighty-one".