52557143 has 2 divisors, whose sum is σ = 52557144. Its totient is φ = 52557142.

The previous prime is 52557119. The next prime is 52557157. The reversal of 52557143 is 34175525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52557143 - 2⁸ = 52556887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52557943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26278571 + 26278572.

It is an arithmetic number, because the mean of its divisors is an integer number (26278572).

Almost surely, 2^52557143 is an apocalyptic number.

52557143 is a deficient number, since it is larger than the sum of its proper divisors (1).

52557143 is an equidigital number, since it uses as much as digits as its factorization.

52557143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21000, while the sum is 32.

The square root of 52557143 is about 7249.6305423104. The cubic root of 52557143 is about 374.5794230015.

The spelling of 52557143 in words is "fifty-two million, five hundred fifty-seven thousand, one hundred forty-three".