55299269 has 2 divisors, whose sum is σ = 55299270. Its totient is φ = 55299268.

The previous prime is 55299241. The next prime is 55299271. The reversal of 55299269 is 96299255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53949025 + 1350244 = 7345^2 + 1162^2 .

It is a cyclic number.

It is not a de Polignac number, because 55299269 - 2¹⁶ = 55233733 is a prime.

It is a super-2 number, since 2×55299269² = 6116018303868722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 55299271, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is equal to p_3298979 and since 55299269 and 3298979 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55229269) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27649634 + 27649635.

It is an arithmetic number, because the mean of its divisors is an integer number (27649635).

Almost surely, 2^55299269 is an apocalyptic number.

It is an amenable number.

55299269 is a deficient number, since it is larger than the sum of its proper divisors (1).

55299269 is an equidigital number, since it uses as much as digits as its factorization.

55299269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 47.

The square root of 55299269 is about 7436.3478267225. The cubic root of 55299269 is about 380.9837598679.

The spelling of 55299269 in words is "fifty-five million, two hundred ninety-nine thousand, two hundred sixty-nine".