249985463 has 8 divisors (see below), whose sum is σ = 307674528. Its totient is φ = 197790624.

The previous prime is 249985447. The next prime is 249985501. The reversal of 249985463 is 364589942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249985463 - 2⁴ = 249985447 is a prime.

It is a super-2 number, since 2×249985463² = 124985463422648738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249985963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1373456 + ... + 1373637.

It is an arithmetic number, because the mean of its divisors is an integer number (38459316).

Almost surely, 2^249985463 is an apocalyptic number.

249985463 is a deficient number, since it is larger than the sum of its proper divisors (57689065).

249985463 is a wasteful number, since it uses less digits than its factorization.

249985463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747113.

The product of its digits is 1866240, while the sum is 50.

The square root of 249985463 is about 15810.9285938556. The cubic root of 249985463 is about 629.9483143959.

The spelling of 249985463 in words is "two hundred forty-nine million, nine hundred eighty-five thousand, four hundred sixty-three".