56469947 has 2 divisors, whose sum is σ = 56469948. Its totient is φ = 56469946.

The previous prime is 56469913. The next prime is 56469961. The reversal of 56469947 is 74996465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56469947 - 2¹⁸ = 56207803 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56469895 and 56469904.

It is not a weakly prime, because it can be changed into another prime (56469967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28234973 + 28234974.

It is an arithmetic number, because the mean of its divisors is an integer number (28234974).

Almost surely, 2^56469947 is an apocalyptic number.

56469947 is a deficient number, since it is larger than the sum of its proper divisors (1).

56469947 is an equidigital number, since it uses as much as digits as its factorization.

56469947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 56469947 is about 7514.6488274569. The cubic root of 56469947 is about 383.6534665781.

The spelling of 56469947 in words is "fifty-six million, four hundred sixty-nine thousand, nine hundred forty-seven".