56409203 has 2 divisors, whose sum is σ = 56409204. Its totient is φ = 56409202.

The previous prime is 56409169. The next prime is 56409253. The reversal of 56409203 is 30290465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56409203 - 2¹⁰ = 56408179 is a prime.

It is not a weakly prime, because it can be changed into another prime (56409253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28204601 + 28204602.

It is an arithmetic number, because the mean of its divisors is an integer number (28204602).

Almost surely, 2^56409203 is an apocalyptic number.

56409203 is a deficient number, since it is larger than the sum of its proper divisors (1).

56409203 is an equidigital number, since it uses as much as digits as its factorization.

56409203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 56409203 is about 7510.6060341360. The cubic root of 56409203 is about 383.5158535138.

Adding to 56409203 its reverse (30290465), we get a palindrome (86699668).

The spelling of 56409203 in words is "fifty-six million, four hundred nine thousand, two hundred three".