56206523 has 2 divisors, whose sum is σ = 56206524. Its totient is φ = 56206522.

The previous prime is 56206499. The next prime is 56206543. The reversal of 56206523 is 32560265.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56206523 - 2⁶ = 56206459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (56206543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28103261 + 28103262.

It is an arithmetic number, because the mean of its divisors is an integer number (28103262).

Almost surely, 2^56206523 is an apocalyptic number.

56206523 is a deficient number, since it is larger than the sum of its proper divisors (1).

56206523 is an equidigital number, since it uses as much as digits as its factorization.

56206523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 56206523 is about 7497.1009730428. The cubic root of 56206523 is about 383.0559742037.

Adding to 56206523 its reverse (32560265), we get a palindrome (88766788).

The spelling of 56206523 in words is "fifty-six million, two hundred six thousand, five hundred twenty-three".