56669047 has 2 divisors, whose sum is σ = 56669048. Its totient is φ = 56669046.

The previous prime is 56669029. The next prime is 56669083. The reversal of 56669047 is 74096665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56669047 - 2²³ = 48280439 is a prime.

It is a super-2 number, since 2×56669047² = 6422761775776418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56668994 and 56669012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56667047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28334523 + 28334524.

It is an arithmetic number, because the mean of its divisors is an integer number (28334524).

Almost surely, 2^56669047 is an apocalyptic number.

56669047 is a deficient number, since it is larger than the sum of its proper divisors (1).

56669047 is an equidigital number, since it uses as much as digits as its factorization.

56669047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 56669047 is about 7527.8846298280. The cubic root of 56669047 is about 384.1038288932.

The spelling of 56669047 in words is "fifty-six million, six hundred sixty-nine thousand, forty-seven".