551251073 has 2 divisors, whose sum is σ = 551251074. Its totient is φ = 551251072.

The previous prime is 551251033. The next prime is 551251087. The reversal of 551251073 is 370152155.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 445716544 + 105534529 = 21112^2 + 10273^2 .

It is a cyclic number.

It is not a de Polignac number, because 551251073 - 2²⁶ = 484142209 is a prime.

It is not a weakly prime, because it can be changed into another prime (551251033) 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 as a sum of consecutive naturals, namely, 275625536 + 275625537.

It is an arithmetic number, because the mean of its divisors is an integer number (275625537).

Almost surely, 2^551251073 is an apocalyptic number.

It is an amenable number.

551251073 is a deficient number, since it is larger than the sum of its proper divisors (1).

551251073 is an equidigital number, since it uses as much as digits as its factorization.

551251073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 551251073 is about 23478.7366142218. The cubic root of 551251073 is about 819.9420309010.

The spelling of 551251073 in words is "five hundred fifty-one million, two hundred fifty-one thousand, seventy-three".