551123997 has 8 divisors (see below), whose sum is σ = 735399456. Its totient is φ = 367132272.

The previous prime is 551123957. The next prime is 551124001. The reversal of 551123997 is 799321155.

551123997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 551123997 - 2⁷ = 551123869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551123957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66358 + ... + 74199.

It is an arithmetic number, because the mean of its divisors is an integer number (91924932).

Almost surely, 2^551123997 is an apocalyptic number.

It is an amenable number.

551123997 is a deficient number, since it is larger than the sum of its proper divisors (184275459).

551123997 is a wasteful number, since it uses less digits than its factorization.

551123997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141867.

The product of its digits is 85050, while the sum is 42.

The square root of 551123997 is about 23476.0302649319. The cubic root of 551123997 is about 819.8790209188.

The spelling of 551123997 in words is "five hundred fifty-one million, one hundred twenty-three thousand, nine hundred ninety-seven".