55280552550 has 48 divisors (see below), whose sum is σ = 141823221840. Its totient is φ = 14233152640.

The previous prime is 55280552549. The next prime is 55280552627. The reversal of 55280552550 is 5525508255.

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, 6349737 + ... + 6358436.

It is an arithmetic number, because the mean of its divisors is an integer number (2954650455).

Almost surely, 2^55280552550 is an apocalyptic number.

55280552550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55280552550 is an abundant number, since it is smaller than the sum of its proper divisors (86542669290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55280552550 is a wasteful number, since it uses less digits than its factorization.

55280552550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12708217 (or 12708212 counting only the distinct ones).

The product of its (nonzero) digits is 500000, while the sum is 42.

The spelling of 55280552550 in words is "fifty-five billion, two hundred eighty million, five hundred fifty-two thousand, five hundred fifty".