56266669 has 2 divisors, whose sum is σ = 56266670. Its totient is φ = 56266668.

The previous prime is 56266663. The next prime is 56266673. The reversal of 56266669 is 96666265.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55681444 + 585225 = 7462^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 56266669 - 2⁹ = 56266157 is a prime.

It is a super-2 number, since 2×56266669² = 6331876080711122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56266663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28133334 + 28133335.

It is an arithmetic number, because the mean of its divisors is an integer number (28133335).

Almost surely, 2^56266669 is an apocalyptic number.

It is an amenable number.

56266669 is a deficient number, since it is larger than the sum of its proper divisors (1).

56266669 is an equidigital number, since it uses as much as digits as its factorization.

56266669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 46.

The square root of 56266669 is about 7501.1111843513. Note that the first 4 decimals coincide. The cubic root of 56266669 is about 383.1925601979.

The spelling of 56266669 in words is "fifty-six million, two hundred sixty-six thousand, six hundred sixty-nine".