52267987 has 2 divisors, whose sum is σ = 52267988. Its totient is φ = 52267986.

The previous prime is 52267981. The next prime is 52267991. The reversal of 52267987 is 78976225.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52267987 is a prime.

It is not a weakly prime, because it can be changed into another prime (52267981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26133993 + 26133994.

It is an arithmetic number, because the mean of its divisors is an integer number (26133994).

Almost surely, 2^52267987 is an apocalyptic number.

52267987 is a deficient number, since it is larger than the sum of its proper divisors (1).

52267987 is an equidigital number, since it uses as much as digits as its factorization.

52267987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 52267987 is about 7229.6602271476. The cubic root of 52267987 is about 373.8912125090.

The spelling of 52267987 in words is "fifty-two million, two hundred sixty-seven thousand, nine hundred eighty-seven".