551423012 has 12 divisors (see below), whose sum is σ = 1102846080. Its totient is φ = 236324136.

The previous prime is 551423011. The next prime is 551423051. The reversal of 551423012 is 210324155.

551423012 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (551423011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9846812 + ... + 9846867.

It is an arithmetic number, because the mean of its divisors is an integer number (91903840).

Almost surely, 2^551423012 is an apocalyptic number.

It is an amenable number.

551423012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

551423012 is a wasteful number, since it uses less digits than its factorization.

551423012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19693690 (or 19693688 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 551423012 is about 23482.3979184410. The cubic root of 551423012 is about 820.0272705585.

Adding to 551423012 its reverse (210324155), we get a palindrome (761747167).

The spelling of 551423012 in words is "five hundred fifty-one million, four hundred twenty-three thousand, twelve".