52218893 has 2 divisors, whose sum is σ = 52218894. Its totient is φ = 52218892.

The previous prime is 52218863. The next prime is 52218923. The reversal of 52218893 is 39881225.

It is a balanced prime because it is at equal distance from previous prime (52218863) and next prime (52218923).

It can be written as a sum of positive squares in only one way, i.e., 39100009 + 13118884 = 6253^2 + 3622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52218893 is a prime.

It is a super-2 number, since 2×52218893² = 5453625572290898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52218823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26109446 + 26109447.

It is an arithmetic number, because the mean of its divisors is an integer number (26109447).

Almost surely, 2^52218893 is an apocalyptic number.

It is an amenable number.

52218893 is a deficient number, since it is larger than the sum of its proper divisors (1).

52218893 is an equidigital number, since it uses as much as digits as its factorization.

52218893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 52218893 is about 7226.2641108667. The cubic root of 52218893 is about 373.7741136480.

The spelling of 52218893 in words is "fifty-two million, two hundred eighteen thousand, eight hundred ninety-three".