551530023 has 16 divisors (see below), whose sum is σ = 805593600. Its totient is φ = 332857280.

The previous prime is 551530019. The next prime is 551530027. The reversal of 551530023 is 320035155.

It is an interprime number because it is at equal distance from previous prime (551530019) and next prime (551530027).

It is a cyclic number.

It is not a de Polignac number, because 551530023 - 2² = 551530019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551529975 and 551530002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551530027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27078 + ... + 42851.

It is an arithmetic number, because the mean of its divisors is an integer number (50349600).

Almost surely, 2^551530023 is an apocalyptic number.

551530023 is a deficient number, since it is larger than the sum of its proper divisors (254063577).

551530023 is a wasteful number, since it uses less digits than its factorization.

551530023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70182.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 551530023 is about 23484.6763443740. The cubic root of 551530023 is about 820.0803128753.

Adding to 551530023 its reverse (320035155), we get a palindrome (871565178).

The spelling of 551530023 in words is "five hundred fifty-one million, five hundred thirty thousand, twenty-three".