56126569 has 2 divisors, whose sum is σ = 56126570. Its totient is φ = 56126568.

The previous prime is 56126533. The next prime is 56126573. The reversal of 56126569 is 96562165.

56126569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50580544 + 5546025 = 7112^2 + 2355^2 .

It is a cyclic number.

It is not a de Polignac number, because 56126569 - 2¹¹ = 56124521 is a prime.

It is a super-2 number, since 2×56126569² = 6300383495423522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56126519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28063284 + 28063285.

It is an arithmetic number, because the mean of its divisors is an integer number (28063285).

Almost surely, 2^56126569 is an apocalyptic number.

It is an amenable number.

56126569 is a deficient number, since it is larger than the sum of its proper divisors (1).

56126569 is an equidigital number, since it uses as much as digits as its factorization.

56126569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The square root of 56126569 is about 7491.7667475703. The cubic root of 56126569 is about 382.8742551345.

The spelling of 56126569 in words is "fifty-six million, one hundred twenty-six thousand, five hundred sixty-nine".