551125073 has 2 divisors, whose sum is σ = 551125074. Its totient is φ = 551125072.

The previous prime is 551125021. The next prime is 551125097. The reversal of 551125073 is 370521155.

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., 440286289 + 110838784 = 20983^2 + 10528^2 .

It is a cyclic number.

It is not a de Polignac number, because 551125073 - 2¹⁴ = 551108689 is a prime.

It is not a weakly prime, because it can be changed into another prime (551125013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275562536 + 275562537.

It is an arithmetic number, because the mean of its divisors is an integer number (275562537).

Almost surely, 2^551125073 is an apocalyptic number.

It is an amenable number.

551125073 is a deficient number, since it is larger than the sum of its proper divisors (1).

551125073 is an equidigital number, since it uses as much as digits as its factorization.

551125073 is an evil number, because the sum of its binary digits is even.

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

The square root of 551125073 is about 23476.0531819128. The cubic root of 551125073 is about 819.8795544885.

The spelling of 551125073 in words is "five hundred fifty-one million, one hundred twenty-five thousand, seventy-three".