5551361 has 2 divisors, whose sum is σ = 5551362. Its totient is φ = 5551360.

The previous prime is 5551339. The next prime is 5551373. The reversal of 5551361 is 1631555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5550736 + 625 = 2356^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 5551361 - 2¹⁸ = 5289217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5551361.

It is not a weakly prime, because it can be changed into another prime (5551321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775680 + 2775681.

It is an arithmetic number, because the mean of its divisors is an integer number (2775681).

Almost surely, 2^5551361 is an apocalyptic number.

It is an amenable number.

5551361 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551361 is an equidigital number, since it uses as much as digits as its factorization.

5551361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2250, while the sum is 26.

The square root of 5551361 is about 2356.1326363344. The cubic root of 5551361 is about 177.0651765036.

The spelling of 5551361 in words is "five million, five hundred fifty-one thousand, three hundred sixty-one".