252981763 has 2 divisors, whose sum is σ = 252981764. Its totient is φ = 252981762.

The previous prime is 252981727. The next prime is 252981769. The reversal of 252981763 is 367189252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252981763 - 2¹³ = 252973571 is a prime.

It is not a weakly prime, because it can be changed into another prime (252981769) 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, 126490881 + 126490882.

It is an arithmetic number, because the mean of its divisors is an integer number (126490882).

Almost surely, 2^252981763 is an apocalyptic number.

252981763 is a deficient number, since it is larger than the sum of its proper divisors (1).

252981763 is an equidigital number, since it uses as much as digits as its factorization.

252981763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 252981763 is about 15905.4004350724. The cubic root of 252981763 is about 632.4551571889.

The spelling of 252981763 in words is "two hundred fifty-two million, nine hundred eighty-one thousand, seven hundred sixty-three".