52218263 has 2 divisors, whose sum is σ = 52218264. Its totient is φ = 52218262.

The previous prime is 52218253. The next prime is 52218277. The reversal of 52218263 is 36281225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52218263 - 2⁸ = 52218007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52218223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26109131 + 26109132.

It is an arithmetic number, because the mean of its divisors is an integer number (26109132).

Almost surely, 2^52218263 is an apocalyptic number.

52218263 is a deficient number, since it is larger than the sum of its proper divisors (1).

52218263 is an equidigital number, since it uses as much as digits as its factorization.

52218263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 52218263 is about 7226.2205197461. The cubic root of 52218263 is about 373.7726104970.

Adding to 52218263 its reverse (36281225), we get a palindrome (88499488).

The spelling of 52218263 in words is "fifty-two million, two hundred eighteen thousand, two hundred sixty-three".