53022187 has 2 divisors, whose sum is σ = 53022188. Its totient is φ = 53022186.

The previous prime is 53022181. The next prime is 53022191. The reversal of 53022187 is 78122035.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53022187 is a prime.

It is a super-2 number, since 2×53022187² = 5622704628525938, which contains 22 as substring.

It is equal to p_3171286 and since 53022187 and 3171286 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (53022181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26511093 + 26511094.

It is an arithmetic number, because the mean of its divisors is an integer number (26511094).

Almost surely, 2^53022187 is an apocalyptic number.

53022187 is a deficient number, since it is larger than the sum of its proper divisors (1).

53022187 is an equidigital number, since it uses as much as digits as its factorization.

53022187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 53022187 is about 7281.6335392548. The cubic root of 53022187 is about 375.6809836519.

The spelling of 53022187 in words is "fifty-three million, twenty-two thousand, one hundred eighty-seven".