55000278007 has 8 divisors (see below), whose sum is σ = 59474644416. Its totient is φ = 50663584512.

The previous prime is 55000278001. The next prime is 55000278023. The reversal of 55000278007 is 70087200055.

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 55000278007 - 2²⁷ = 54866060279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000278001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34417398 + ... + 34418995.

It is an arithmetic number, because the mean of its divisors is an integer number (7434330552).

Almost surely, 2^55000278007 is an apocalyptic number.

55000278007 is a deficient number, since it is larger than the sum of its proper divisors (4474366409).

55000278007 is a wasteful number, since it uses less digits than its factorization.

55000278007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68836457.

The product of its (nonzero) digits is 19600, while the sum is 34.

The spelling of 55000278007 in words is "fifty-five billion, two hundred seventy-eight thousand, seven".