56142269 has 2 divisors, whose sum is σ = 56142270. Its totient is φ = 56142268.

The previous prime is 56142263. The next prime is 56142293. The reversal of 56142269 is 96224165.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54612100 + 1530169 = 7390^2 + 1237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56142269 is a prime.

It is a super-2 number, since 2×56142269² = 6303908736936722, 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 (56142263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28071134 + 28071135.

It is an arithmetic number, because the mean of its divisors is an integer number (28071135).

Almost surely, 2^56142269 is an apocalyptic number.

It is an amenable number.

56142269 is a deficient number, since it is larger than the sum of its proper divisors (1).

56142269 is an equidigital number, since it uses as much as digits as its factorization.

56142269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 56142269 is about 7492.8144912309. The cubic root of 56142269 is about 382.9099516297.

The spelling of 56142269 in words is "fifty-six million, one hundred forty-two thousand, two hundred sixty-nine".