56623001 has 2 divisors, whose sum is σ = 56623002. Its totient is φ = 56623000.

The previous prime is 56622991. The next prime is 56623031. The reversal of 56623001 is 10032665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45225625 + 11397376 = 6725^2 + 3376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56623001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56623031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28311500 + 28311501.

It is an arithmetic number, because the mean of its divisors is an integer number (28311501).

Almost surely, 2^56623001 is an apocalyptic number.

It is an amenable number.

56623001 is a deficient number, since it is larger than the sum of its proper divisors (1).

56623001 is an equidigital number, since it uses as much as digits as its factorization.

56623001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 56623001 is about 7524.8256458206. The cubic root of 56623001 is about 383.9997671620. Note that the first 3 decimals are identical.

Adding to 56623001 its reverse (10032665), we get a palindrome (66655666).

The spelling of 56623001 in words is "fifty-six million, six hundred twenty-three thousand, one".