551625243 has 16 divisors (see below), whose sum is σ = 793718016. Its totient is φ = 338758560.

The previous prime is 551625241. The next prime is 551625247. The reversal of 551625243 is 342526155.

It is not a de Polignac number, because 551625243 - 2¹ = 551625241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551625241) 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 15 ways as a sum of consecutive naturals, for example, 4746 + ... + 33552.

It is an arithmetic number, because the mean of its divisors is an integer number (49607376).

Almost surely, 2^551625243 is an apocalyptic number.

551625243 is a deficient number, since it is larger than the sum of its proper divisors (242092773).

551625243 is a wasteful number, since it uses less digits than its factorization.

551625243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29314.

The product of its digits is 36000, while the sum is 33.

The square root of 551625243 is about 23486.7035362564. The cubic root of 551625243 is about 820.1275049596.

The spelling of 551625243 in words is "five hundred fifty-one million, six hundred twenty-five thousand, two hundred forty-three".