288550993 has 2 divisors, whose sum is σ = 288550994. Its totient is φ = 288550992.

The previous prime is 288550991. The next prime is 288551017. The reversal of 288550993 is 399055882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283855104 + 4695889 = 16848^2 + 2167^2 .

It is a cyclic number.

It is not a de Polignac number, because 288550993 - 2¹ = 288550991 is a prime.

It is a super-2 number, since 2×288550993² = 166523351122572098, which contains 22 as substring.

Together with 288550991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (288550991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144275496 + 144275497.

It is an arithmetic number, because the mean of its divisors is an integer number (144275497).

Almost surely, 2^288550993 is an apocalyptic number.

It is an amenable number.

288550993 is a deficient number, since it is larger than the sum of its proper divisors (1).

288550993 is an equidigital number, since it uses as much as digits as its factorization.

288550993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 288550993 is about 16986.7887783418. The cubic root of 288550993 is about 660.8063247320.

The spelling of 288550993 in words is "two hundred eighty-eight million, five hundred fifty thousand, nine hundred ninety-three".