551328001 has 8 divisors (see below), whose sum is σ = 643495680. Its totient is φ = 462511968.

The previous prime is 551327981. The next prime is 551328007. The reversal of 551328001 is 100823155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551328001 - 2⁹ = 551327489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551328007) 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 7 ways as a sum of consecutive naturals, for example, 837556 + ... + 838213.

It is an arithmetic number, because the mean of its divisors is an integer number (80436960).

Almost surely, 2^551328001 is an apocalyptic number.

It is an amenable number.

551328001 is a deficient number, since it is larger than the sum of its proper divisors (92167679).

551328001 is a wasteful number, since it uses less digits than its factorization.

551328001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675823.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 551328001 is about 23480.3748053561. The cubic root of 551328001 is about 819.9801705496.

The spelling of 551328001 in words is "five hundred fifty-one million, three hundred twenty-eight thousand, one".