55805340 has 24 divisors (see below), whose sum is σ = 156255120. Its totient is φ = 14881408.

The previous prime is 55805333. The next prime is 55805359. The reversal of 55805340 is 4350855.

55805340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55805340² = 6228471945031200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 55805298 and 55805307.

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, 464985 + ... + 465104.

It is an arithmetic number, because the mean of its divisors is an integer number (6510630).

Almost surely, 2^55805340 is an apocalyptic number.

It is an amenable number.

55805340 is an abundant number, since it is smaller than the sum of its proper divisors (100449780).

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

55805340 is a wasteful number, since it uses less digits than its factorization.

55805340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930101 (or 930099 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55805340 is about 7470.2971828435. The cubic root of 55805340 is about 382.1424228853.

The spelling of 55805340 in words is "fifty-five million, eight hundred five thousand, three hundred forty".