52643551 has 2 divisors, whose sum is σ = 52643552. Its totient is φ = 52643550.

The previous prime is 52643531. The next prime is 52643561. The reversal of 52643551 is 15534625.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52643551 - 2⁵ = 52643519 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52643501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26321775 + 26321776.

It is an arithmetic number, because the mean of its divisors is an integer number (26321776).

Almost surely, 2^52643551 is an apocalyptic number.

52643551 is a deficient number, since it is larger than the sum of its proper divisors (1).

52643551 is an equidigital number, since it uses as much as digits as its factorization.

52643551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 31.

The square root of 52643551 is about 7255.5875709690. The cubic root of 52643551 is about 374.7845897677.

The spelling of 52643551 in words is "fifty-two million, six hundred forty-three thousand, five hundred fifty-one".