56620001 has 2 divisors, whose sum is σ = 56620002. Its totient is φ = 56620000.

The previous prime is 56619989. The next prime is 56620037. The reversal of 56620001 is 10002665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30813601 + 25806400 = 5551^2 + 5080^2 .

It is a cyclic number.

It is not a de Polignac number, because 56620001 - 2¹⁰ = 56618977 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (56622001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28310000 + 28310001.

It is an arithmetic number, because the mean of its divisors is an integer number (28310001).

Almost surely, 2^56620001 is an apocalyptic number.

It is an amenable number.

56620001 is a deficient number, since it is larger than the sum of its proper divisors (1).

56620001 is an equidigital number, since it uses as much as digits as its factorization.

56620001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 56620001 is about 7524.6263030133. The cubic root of 56620001 is about 383.9929853500.

Adding to 56620001 its reverse (10002665), we get a palindrome (66622666).

The spelling of 56620001 in words is "fifty-six million, six hundred twenty thousand, one".