250563 has 10 divisors (see below), whose sum is σ = 354964. Its totient is φ = 157216.

The previous prime is 250543. The next prime is 250583. The reversal of 250563 is 365052.

It is an interprime number because it is at equal distance from previous prime (250543) and next prime (250583).

It is not a de Polignac number, because 250563 - 2⁶ = 250499 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250543) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14731 + ... + 14747.

2²⁵⁰⁵⁶³ is an apocalyptic number.

250563 is a deficient number, since it is larger than the sum of its proper divisors (104401).

250563 is an frugal number, since it uses more digits than its factorization.

250563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 250563 is about 500.5626833874. The cubic root of 250563 is about 63.0433060775.

The spelling of 250563 in words is "two hundred fifty thousand, five hundred sixty-three".