52811287 has 2 divisors, whose sum is σ = 52811288. Its totient is φ = 52811286.

The previous prime is 52811281. The next prime is 52811329. The reversal of 52811287 is 78211825.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52811287 - 2¹⁹ = 52286999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52811281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26405643 + 26405644.

It is an arithmetic number, because the mean of its divisors is an integer number (26405644).

Almost surely, 2^52811287 is an apocalyptic number.

52811287 is a deficient number, since it is larger than the sum of its proper divisors (1).

52811287 is an equidigital number, since it uses as much as digits as its factorization.

52811287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 34.

The square root of 52811287 is about 7267.1374694580. The cubic root of 52811287 is about 375.1822213659.

The spelling of 52811287 in words is "fifty-two million, eight hundred eleven thousand, two hundred eighty-seven".