55275505550 has 48 divisors (see below), whose sum is σ = 107352816480. Its totient is φ = 21135037440.

The previous prime is 55275505547. The next prime is 55275505561. The reversal of 55275505550 is 5550557255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1835414 + ... + 1865286.

It is an arithmetic number, because the mean of its divisors is an integer number (2236517010).

Almost surely, 2^55275505550 is an apocalyptic number.

55275505550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55275505550 is a deficient number, since it is larger than the sum of its proper divisors (52077310930).

55275505550 is a wasteful number, since it uses less digits than its factorization.

55275505550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31517 (or 31512 counting only the distinct ones).

The product of its (nonzero) digits is 1093750, while the sum is 44.

The spelling of 55275505550 in words is "fifty-five billion, two hundred seventy-five million, five hundred five thousand, five hundred fifty".