52866431 has 2 divisors, whose sum is σ = 52866432. Its totient is φ = 52866430.

The previous prime is 52866421. The next prime is 52866433. The reversal of 52866431 is 13466825.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52866431 is a prime.

It is a super-2 number, since 2×52866431² = 5589719053355522, which contains 22 as substring.

Together with 52866433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 52866391 and 52866400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52866433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26433215 + 26433216.

It is an arithmetic number, because the mean of its divisors is an integer number (26433216).

Almost surely, 2^52866431 is an apocalyptic number.

52866431 is a deficient number, since it is larger than the sum of its proper divisors (1).

52866431 is an equidigital number, since it uses as much as digits as its factorization.

52866431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 52866431 is about 7270.9305456730. The cubic root of 52866431 is about 375.3127607058.

The spelling of 52866431 in words is "fifty-two million, eight hundred sixty-six thousand, four hundred thirty-one".