55478220303 has 8 divisors (see below), whose sum is σ = 80695593216. Its totient is φ = 33623163800.

The previous prime is 55478220299. The next prime is 55478220307. The reversal of 55478220303 is 30302287455.

It is an interprime number because it is at equal distance from previous prime (55478220299) and next prime (55478220307).

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

It is a cyclic number.

It is not a de Polignac number, because 55478220303 - 2² = 55478220299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55478220307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840579063 + ... + 840579128.

It is an arithmetic number, because the mean of its divisors is an integer number (10086949152).

Almost surely, 2^55478220303 is an apocalyptic number.

55478220303 is a deficient number, since it is larger than the sum of its proper divisors (25217372913).

55478220303 is a wasteful number, since it uses less digits than its factorization.

55478220303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681158205.

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 55478220303 in words is "fifty-five billion, four hundred seventy-eight million, two hundred twenty thousand, three hundred three".