551075641 has 2 divisors, whose sum is σ = 551075642. Its totient is φ = 551075640.

The previous prime is 551075633. The next prime is 551075671. The reversal of 551075641 is 146570155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551075625 + 16 = 23475^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 551075641 - 2³ = 551075633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551075597 and 551075606.

It is not a weakly prime, because it can be changed into another prime (551075671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275537820 + 275537821.

It is an arithmetic number, because the mean of its divisors is an integer number (275537821).

Almost surely, 2^551075641 is an apocalyptic number.

It is an amenable number.

551075641 is a deficient number, since it is larger than the sum of its proper divisors (1).

551075641 is an equidigital number, since it uses as much as digits as its factorization.

551075641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 551075641 is about 23475.0003407881. Note that the first 3 decimals coincide. The cubic root of 551075641 is about 819.8550413003.

The spelling of 551075641 in words is "five hundred fifty-one million, seventy-five thousand, six hundred forty-one".