56669099 has 2 divisors, whose sum is σ = 56669100. Its totient is φ = 56669098.

The previous prime is 56669083. The next prime is 56669117. The reversal of 56669099 is 99096665.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56669099 - 2⁴ = 56669083 is a prime.

It is a super-2 number, since 2×56669099² = 6422773562943602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56669009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28334549 + 28334550.

It is an arithmetic number, because the mean of its divisors is an integer number (28334550).

Almost surely, 2^56669099 is an apocalyptic number.

56669099 is a deficient number, since it is larger than the sum of its proper divisors (1).

56669099 is an equidigital number, since it uses as much as digits as its factorization.

56669099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 50.

The square root of 56669099 is about 7527.8880836527. Note that the first 3 decimals coincide. The cubic root of 56669099 is about 384.1039463788.

The spelling of 56669099 in words is "fifty-six million, six hundred sixty-nine thousand, ninety-nine".