551795161 has 2 divisors, whose sum is σ = 551795162. Its totient is φ = 551795160.

The previous prime is 551795141. The next prime is 551795263. The reversal of 551795161 is 161597155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324720400 + 227074761 = 18020^2 + 15069^2 .

It is a cyclic number.

It is not a de Polignac number, because 551795161 - 2²⁵ = 518240729 is a prime.

It is not a weakly prime, because it can be changed into another prime (551795141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275897580 + 275897581.

It is an arithmetic number, because the mean of its divisors is an integer number (275897581).

Almost surely, 2^551795161 is an apocalyptic number.

It is an amenable number.

551795161 is a deficient number, since it is larger than the sum of its proper divisors (1).

551795161 is an equidigital number, since it uses as much as digits as its factorization.

551795161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47250, while the sum is 40.

The square root of 551795161 is about 23490.3205810393. The cubic root of 551795161 is about 820.2117047075.

The spelling of 551795161 in words is "five hundred fifty-one million, seven hundred ninety-five thousand, one hundred sixty-one".