551243023 has 8 divisors (see below), whose sum is σ = 569327616. Its totient is φ = 533177400.

The previous prime is 551242973. The next prime is 551243027. The reversal of 551243023 is 320342155.

551243023 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551243023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551243027) 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, 76890 + ... + 83752.

It is an arithmetic number, because the mean of its divisors is an integer number (71165952).

Almost surely, 2^551243023 is an apocalyptic number.

551243023 is a deficient number, since it is larger than the sum of its proper divisors (18084593).

551243023 is a wasteful number, since it uses less digits than its factorization.

551243023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9485.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 551243023 is about 23478.5651818845. The cubic root of 551243023 is about 819.9380396372.

Adding to 551243023 its reverse (320342155), we get a palindrome (871585178).

The spelling of 551243023 in words is "five hundred fifty-one million, two hundred forty-three thousand, twenty-three".