550401222450 has 24 divisors (see below), whose sum is σ = 1364995032048. Its totient is φ = 146773659280.

The previous prime is 550401222443. The next prime is 550401222457. The reversal of 550401222450 is 54222104055.

It is an interprime number because it is at equal distance from previous prime (550401222443) and next prime (550401222457).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (550401222457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1834670592 + ... + 1834670891.

It is an arithmetic number, because the mean of its divisors is an integer number (56874793002).

Almost surely, 2^550401222450 is an apocalyptic number.

550401222450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550401222450 is an abundant number, since it is smaller than the sum of its proper divisors (814593809598).

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

550401222450 is a wasteful number, since it uses less digits than its factorization.

550401222450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669341498 (or 3669341493 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 550401222450 in words is "five hundred fifty billion, four hundred one million, two hundred twenty-two thousand, four hundred fifty".