551794194 has 288 divisors, whose sum is σ = 1613364480. Its totient is φ = 140216832.

The previous prime is 551794169. The next prime is 551794237. The reversal of 551794194 is 491497155.

551794194 is a `hidden beast` number, since 5 + 517 + 9 + 41 + 94 = 666.

Its product of digits (226800) is a multiple of the sum of its prime divisors (105).

It is a Curzon 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 143 ways as a sum of consecutive naturals, for example, 11740279 + ... + 11740325.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^551794194 is an apocalyptic number.

551794194 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 551794194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806682240).

551794194 is an abundant number, since it is smaller than the sum of its proper divisors (1061570286).

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

551794194 is a wasteful number, since it uses less digits than its factorization.

551794194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 105 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 551794194 is about 23490.2999980843. The cubic root of 551794194 is about 820.2112255773.

The spelling of 551794194 in words is "five hundred fifty-one million, seven hundred ninety-four thousand, one hundred ninety-four".