55266122450 has 144 divisors (see below), whose sum is σ = 130785254208. Its totient is φ = 17181360000.

The previous prime is 55266122449. The next prime is 55266122467. The reversal of 55266122450 is 5422166255.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11343515 + ... + 11348385.

It is an arithmetic number, because the mean of its divisors is an integer number (908230932).

Almost surely, 2^55266122450 is an apocalyptic number.

55266122450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55266122450 is an abundant number, since it is smaller than the sum of its proper divisors (75519131758).

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

55266122450 is a wasteful number, since it uses less digits than its factorization.

55266122450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5329 (or 5317 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 55266122450 in words is "fifty-five billion, two hundred sixty-six million, one hundred twenty-two thousand, four hundred fifty".