56045069 has 2 divisors, whose sum is σ = 56045070. Its totient is φ = 56045068.

The previous prime is 56045063. The next prime is 56045071. The reversal of 56045069 is 96054065.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37982569 + 18062500 = 6163^2 + 4250^2 .

It is a cyclic number.

It is not a de Polignac number, because 56045069 - 2¹⁶ = 55979533 is a prime.

It is a super-2 number, since 2×56045069² = 6282099518429522, which contains 22 as substring.

Together with 56045071, 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 (56045063) 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, 28022534 + 28022535.

It is an arithmetic number, because the mean of its divisors is an integer number (28022535).

Almost surely, 2^56045069 is an apocalyptic number.

It is an amenable number.

56045069 is a deficient number, since it is larger than the sum of its proper divisors (1).

56045069 is an equidigital number, since it uses as much as digits as its factorization.

56045069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 56045069 is about 7486.3254671434. The cubic root of 56045069 is about 382.6888446228.

The spelling of 56045069 in words is "fifty-six million, forty-five thousand, sixty-nine".