52666631 has 2 divisors, whose sum is σ = 52666632. Its totient is φ = 52666630.

The previous prime is 52666609. The next prime is 52666637. The reversal of 52666631 is 13666625.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52666631 is a prime.

It is a super-2 number, since 2×52666631² = 5547548041780322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 52666591 and 52666600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52666637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26333315 + 26333316.

It is an arithmetic number, because the mean of its divisors is an integer number (26333316).

Almost surely, 2^52666631 is an apocalyptic number.

52666631 is a deficient number, since it is larger than the sum of its proper divisors (1).

52666631 is an equidigital number, since it uses as much as digits as its factorization.

52666631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 35.

The square root of 52666631 is about 7257.1778950223. The cubic root of 52666631 is about 374.8393528194.

The spelling of 52666631 in words is "fifty-two million, six hundred sixty-six thousand, six hundred thirty-one".