56623841 has 2 divisors, whose sum is σ = 56623842. Its totient is φ = 56623840.

The previous prime is 56623823. The next prime is 56623871. The reversal of 56623841 is 14832665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56550400 + 73441 = 7520^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 56623841 - 2¹⁰ = 56622817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (56623871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28311920 + 28311921.

It is an arithmetic number, because the mean of its divisors is an integer number (28311921).

Almost surely, 2^56623841 is an apocalyptic number.

It is an amenable number.

56623841 is a deficient number, since it is larger than the sum of its proper divisors (1).

56623841 is an equidigital number, since it uses as much as digits as its factorization.

56623841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 56623841 is about 7524.8814608604. The cubic root of 56623841 is about 384.0016660265.

The spelling of 56623841 in words is "fifty-six million, six hundred twenty-three thousand, eight hundred forty-one".