52216403 has 2 divisors, whose sum is σ = 52216404. Its totient is φ = 52216402.

The previous prime is 52216349. The next prime is 52216429. The reversal of 52216403 is 30461225.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52216403 - 2²⁰ = 51167827 is a prime.

It is not a weakly prime, because it can be changed into another prime (52219403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26108201 + 26108202.

It is an arithmetic number, because the mean of its divisors is an integer number (26108202).

Almost surely, 2^52216403 is an apocalyptic number.

52216403 is a deficient number, since it is larger than the sum of its proper divisors (1).

52216403 is an equidigital number, since it uses as much as digits as its factorization.

52216403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 52216403 is about 7226.0918206178. The cubic root of 52216403 is about 373.7681725522.

Adding to 52216403 its reverse (30461225), we get a palindrome (82677628).

The spelling of 52216403 in words is "fifty-two million, two hundred sixteen thousand, four hundred three".