55280550550 has 24 divisors (see below), whose sum is σ = 102919754232. Its totient is φ = 22091160000.

The previous prime is 55280550517. The next prime is 55280550571. The reversal of 55280550550 is 5505508255.

It is a super-2 number, since 2×55280550550² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 473431 + ... + 578530.

It is an arithmetic number, because the mean of its divisors is an integer number (4288323093).

Almost surely, 2^55280550550 is an apocalyptic number.

55280550550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55280550550 is a deficient number, since it is larger than the sum of its proper divisors (47639203682).

55280550550 is a wasteful number, since it uses less digits than its factorization.

55280550550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053024 (or 1053019 counting only the distinct ones).

The product of its (nonzero) digits is 250000, while the sum is 40.

The spelling of 55280550550 in words is "fifty-five billion, two hundred eighty million, five hundred fifty thousand, five hundred fifty".