55020269 has 2 divisors, whose sum is σ = 55020270. Its totient is φ = 55020268.

The previous prime is 55020253. The next prime is 55020271. The reversal of 55020269 is 96202055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52027369 + 2992900 = 7213^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 55020269 - 2⁴ = 55020253 is a prime.

It is a super-2 number, since 2×55020269² = 6054460001664722, which contains 22 as substring.

Together with 55020271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55020299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27510134 + 27510135.

It is an arithmetic number, because the mean of its divisors is an integer number (27510135).

Almost surely, 2^55020269 is an apocalyptic number.

It is an amenable number.

55020269 is a deficient number, since it is larger than the sum of its proper divisors (1).

55020269 is an equidigital number, since it uses as much as digits as its factorization.

55020269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 55020269 is about 7417.5648969187. The cubic root of 55020269 is about 380.3419567285.

The spelling of 55020269 in words is "fifty-five million, twenty thousand, two hundred sixty-nine".