250720 has 24 divisors (see below), whose sum is σ = 592704. Its totient is φ = 100224.

The previous prime is 250709. The next prime is 250721. The reversal of 250720 is 27052.

It is a happy number.

250720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 250694 and 250703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624 + ... + 943.

It is an arithmetic number, because the mean of its divisors is an integer number (24696).

2²⁵⁰⁷²⁰ is an apocalyptic number.

250720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250720 is an abundant number, since it is smaller than the sum of its proper divisors (341984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250720 is a wasteful number, since it uses less digits than its factorization.

250720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 250720 is about 500.7194823452. The cubic root of 250720 is about 63.0564707407.

Adding to 250720 its reverse (27052), we get a palindrome (277772).

The spelling of 250720 in words is "two hundred fifty thousand, seven hundred twenty".