55479269 has 2 divisors, whose sum is σ = 55479270. Its totient is φ = 55479268.

The previous prime is 55479239. The next prime is 55479311. The reversal of 55479269 is 96297455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50908225 + 4571044 = 7135^2 + 2138^2 .

It is a cyclic number.

It is not a de Polignac number, because 55479269 - 2¹⁶ = 55413733 is a prime.

It is a super-2 number, since 2×55479269² = 6155898577548722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55479239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27739634 + 27739635.

It is an arithmetic number, because the mean of its divisors is an integer number (27739635).

Almost surely, 2^55479269 is an apocalyptic number.

It is an amenable number.

55479269 is a deficient number, since it is larger than the sum of its proper divisors (1).

55479269 is an equidigital number, since it uses as much as digits as its factorization.

55479269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 47.

The square root of 55479269 is about 7448.4407093029. The cubic root of 55479269 is about 381.3966815682.

The spelling of 55479269 in words is "fifty-five million, four hundred seventy-nine thousand, two hundred sixty-nine".