551312530 has 16 divisors (see below), whose sum is σ = 1035509184. Its totient is φ = 210936880.

The previous prime is 551312521. The next prime is 551312539. The reversal of 551312530 is 35213155.

It is an interprime number because it is at equal distance from previous prime (551312521) and next prime (551312539).

It is a junction number, because it is equal to n+sod(n) for n = 551312495 and 551312504.

It is not an unprimeable number, because it can be changed into a prime (551312539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198276 + ... + 1198735.

It is an arithmetic number, because the mean of its divisors is an integer number (64719324).

Almost surely, 2^551312530 is an apocalyptic number.

551312530 is a deficient number, since it is larger than the sum of its proper divisors (484196654).

551312530 is a wasteful number, since it uses less digits than its factorization.

551312530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397041.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 551312530 is about 23480.0453577075. The cubic root of 551312530 is about 819.9725005650.

Adding to 551312530 its reverse (35213155), we get a palindrome (586525685).

It can be divided in two parts, 5513125 and 30, that added together give a palindrome (5513155).

The spelling of 551312530 in words is "five hundred fifty-one million, three hundred twelve thousand, five hundred thirty".