863090253 has 24 divisors (see below), whose sum is σ = 1257635808. Its totient is φ = 570361632.

The previous prime is 863090233. The next prime is 863090269. The reversal of 863090253 is 352090368.

It is a de Polignac number, because none of the positive numbers 2^k-863090253 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863090233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 726526 + ... + 727712.

It is an arithmetic number, because the mean of its divisors is an integer number (52401492).

Almost surely, 2^863090253 is an apocalyptic number.

It is an amenable number.

863090253 is a deficient number, since it is larger than the sum of its proper divisors (394545555).

863090253 is a wasteful number, since it uses less digits than its factorization.

863090253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 863090253 is about 29378.3977269013. The cubic root of 863090253 is about 952.1062236561.

The spelling of 863090253 in words is "eight hundred sixty-three million, ninety thousand, two hundred fifty-three".