549631441 has 2 divisors, whose sum is σ = 549631442. Its totient is φ = 549631440.

The previous prime is 549631387. The next prime is 549631451. The reversal of 549631441 is 144136945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334158400 + 215473041 = 18280^2 + 14679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549631441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 549631441.

It is not a weakly prime, because it can be changed into another prime (549631451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274815720 + 274815721.

It is an arithmetic number, because the mean of its divisors is an integer number (274815721).

Almost surely, 2^549631441 is an apocalyptic number.

It is an amenable number.

549631441 is a deficient number, since it is larger than the sum of its proper divisors (1).

549631441 is an equidigital number, since it uses as much as digits as its factorization.

549631441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 549631441 is about 23444.2197780178. The cubic root of 549631441 is about 819.1382186590.

The spelling of 549631441 in words is "five hundred forty-nine million, six hundred thirty-one thousand, four hundred forty-one".