55540306 has 8 divisors (see below), whose sum is σ = 87695280. Its totient is φ = 26308548.

The previous prime is 55540301. The next prime is 55540319. The reversal of 55540306 is 60304555.

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

It is not an unprimeable number, because it can be changed into a prime (55540301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730756 + ... + 730831.

It is an arithmetic number, because the mean of its divisors is an integer number (10961910).

Almost surely, 2^55540306 is an apocalyptic number.

55540306 is a deficient number, since it is larger than the sum of its proper divisors (32154974).

55540306 is a wasteful number, since it uses less digits than its factorization.

55540306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461608.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 55540306 is about 7452.5368835048. The cubic root of 55540306 is about 381.5364982227.

The spelling of 55540306 in words is "fifty-five million, five hundred forty thousand, three hundred six".