55280278115 has 4 divisors (see below), whose sum is σ = 66336333744. Its totient is φ = 44224222488.

The previous prime is 55280278103. The next prime is 55280278159. The reversal of 55280278115 is 51187208255.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55280278115 - 2¹⁴ = 55280261731 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5528027807 + ... + 5528027816.

It is an arithmetic number, because the mean of its divisors is an integer number (16584083436).

Almost surely, 2^55280278115 is an apocalyptic number.

55280278115 is a deficient number, since it is larger than the sum of its proper divisors (11056055629).

55280278115 is a wasteful number, since it uses less digits than its factorization.

55280278115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11056055628.

The product of its (nonzero) digits is 224000, while the sum is 44.

The spelling of 55280278115 in words is "fifty-five billion, two hundred eighty million, two hundred seventy-eight thousand, one hundred fifteen".