56705629 has 2 divisors, whose sum is σ = 56705630. Its totient is φ = 56705628.

The previous prime is 56705611. The next prime is 56705639. The reversal of 56705629 is 92650765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39879225 + 16826404 = 6315^2 + 4102^2 .

It is a cyclic number.

It is not a de Polignac number, because 56705629 - 2¹³ = 56697437 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56705591 and 56705600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56705609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28352814 + 28352815.

It is an arithmetic number, because the mean of its divisors is an integer number (28352815).

Almost surely, 2^56705629 is an apocalyptic number.

It is an amenable number.

56705629 is a deficient number, since it is larger than the sum of its proper divisors (1).

56705629 is an equidigital number, since it uses as much as digits as its factorization.

56705629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 56705629 is about 7530.3140040771. The cubic root of 56705629 is about 384.1864622680.

The spelling of 56705629 in words is "fifty-six million, seven hundred five thousand, six hundred twenty-nine".