55343040 has 56 divisors (see below), whose sum is σ = 175717200. Its totient is φ = 14757888.

The previous prime is 55343039. The next prime is 55343053. The reversal of 55343040 is 4034355.

It is a happy number.

55343040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 55343040.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27865 + ... + 29784.

Almost surely, 2^55343040 is an apocalyptic number.

It is an amenable number.

55343040 is an abundant number, since it is smaller than the sum of its proper divisors (120374160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55343040 is a wasteful number, since it uses less digits than its factorization.

55343040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57669 (or 57659 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 55343040 is about 7439.2902887305. The cubic root of 55343040 is about 381.0842533134.

Adding to 55343040 its reverse (4034355), we get a palindrome (59377395).

The spelling of 55343040 in words is "fifty-five million, three hundred forty-three thousand, forty".