55304390 has 8 divisors (see below), whose sum is σ = 99547920. Its totient is φ = 22121752.

The previous prime is 55304371. The next prime is 55304393. The reversal of 55304390 is 9340355.

55304390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55304393) 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 3 ways as a sum of consecutive naturals, for example, 2765210 + ... + 2765229.

It is an arithmetic number, because the mean of its divisors is an integer number (12443490).

Almost surely, 2^55304390 is an apocalyptic number.

55304390 is a deficient number, since it is larger than the sum of its proper divisors (44243530).

55304390 is a wasteful number, since it uses less digits than its factorization.

55304390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530446.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 55304390 is about 7436.6921409992. The cubic root of 55304390 is about 380.9955198643.

The spelling of 55304390 in words is "fifty-five million, three hundred four thousand, three hundred ninety".