56704567 has 2 divisors, whose sum is σ = 56704568. Its totient is φ = 56704566.

The previous prime is 56704559. The next prime is 56704589. The reversal of 56704567 is 76540765.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56704567 - 2³ = 56704559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56704667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28352283 + 28352284.

It is an arithmetic number, because the mean of its divisors is an integer number (28352284).

Almost surely, 2^56704567 is an apocalyptic number.

56704567 is a deficient number, since it is larger than the sum of its proper divisors (1).

56704567 is an equidigital number, since it uses as much as digits as its factorization.

56704567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 56704567 is about 7530.2434887592. The cubic root of 56704567 is about 384.1840638667.

The spelling of 56704567 in words is "fifty-six million, seven hundred four thousand, five hundred sixty-seven".