912320550 has 96 divisors (see below), whose sum is σ = 2520255360. Its totient is φ = 242676000.

The previous prime is 912320537. The next prime is 912320567. The reversal of 912320550 is 55023219.

912320550 is a `hidden beast` number, since 91 + 2 + 3 + 20 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 867525 + ... + 868575.

It is an arithmetic number, because the mean of its divisors is an integer number (26252660).

Almost surely, 2^912320550 is an apocalyptic number.

912320550 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 912320550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260127680).

912320550 is an abundant number, since it is smaller than the sum of its proper divisors (1607934810).

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

912320550 is a wasteful number, since it uses less digits than its factorization.

912320550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715 (or 1704 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 912320550 is about 30204.6445104060. The cubic root of 912320550 is about 969.8751212036.

Adding to 912320550 its reverse (55023219), we get a palindrome (967343769).

The spelling of 912320550 in words is "nine hundred twelve million, three hundred twenty thousand, five hundred fifty".