551384797 has 2 divisors, whose sum is σ = 551384798. Its totient is φ = 551384796.

The previous prime is 551384791. The next prime is 551384849. The reversal of 551384797 is 797483155.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511619161 + 39765636 = 22619^2 + 6306^2 .

It is a cyclic number.

It is not a de Polignac number, because 551384797 - 2¹⁵ = 551352029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551384797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551384791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275692398 + 275692399.

It is an arithmetic number, because the mean of its divisors is an integer number (275692399).

Almost surely, 2^551384797 is an apocalyptic number.

It is an amenable number.

551384797 is a deficient number, since it is larger than the sum of its proper divisors (1).

551384797 is an equidigital number, since it uses as much as digits as its factorization.

551384797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 49.

The square root of 551384797 is about 23481.5842097589. The cubic root of 551384797 is about 820.0083268042.

The spelling of 551384797 in words is "five hundred fifty-one million, three hundred eighty-four thousand, seven hundred ninety-seven".