56410121 has 2 divisors, whose sum is σ = 56410122. Its totient is φ = 56410120.

The previous prime is 56410117. The next prime is 56410129. The reversal of 56410121 is 12101465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30958096 + 25452025 = 5564^2 + 5045^2 .

It is a cyclic number.

It is not a de Polignac number, because 56410121 - 2² = 56410117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56410093 and 56410102.

It is not a weakly prime, because it can be changed into another prime (56410129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28205060 + 28205061.

It is an arithmetic number, because the mean of its divisors is an integer number (28205061).

Almost surely, 2^56410121 is an apocalyptic number.

It is an amenable number.

56410121 is a deficient number, since it is larger than the sum of its proper divisors (1).

56410121 is an equidigital number, since it uses as much as digits as its factorization.

56410121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 56410121 is about 7510.6671474643. The cubic root of 56410121 is about 383.5179339405.

Adding to 56410121 its reverse (12101465), we get a palindrome (68511586).

The spelling of 56410121 in words is "fifty-six million, four hundred ten thousand, one hundred twenty-one".