56206643 has 2 divisors, whose sum is σ = 56206644. Its totient is φ = 56206642.

The previous prime is 56206637. The next prime is 56206649. The reversal of 56206643 is 34660265.

It is a balanced prime because it is at equal distance from previous prime (56206637) and next prime (56206649).

It is a cyclic number.

It is not a de Polignac number, because 56206643 - 2²⁰ = 55158067 is a prime.

It is not a weakly prime, because it can be changed into another prime (56206649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28103321 + 28103322.

It is an arithmetic number, because the mean of its divisors is an integer number (28103322).

Almost surely, 2^56206643 is an apocalyptic number.

56206643 is a deficient number, since it is larger than the sum of its proper divisors (1).

56206643 is an equidigital number, since it uses as much as digits as its factorization.

56206643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 56206643 is about 7497.1089761321. The cubic root of 56206643 is about 383.0562468095.

The spelling of 56206643 in words is "fifty-six million, two hundred six thousand, six hundred forty-three".