20231250 has 96 divisors (see below), whose sum is σ = 55121472. Its totient is φ = 4920000.

The previous prime is 20231243. The next prime is 20231269. The reversal of 20231250 is 5213202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243709 + ... + 243791.

It is an arithmetic number, because the mean of its divisors is an integer number (574182).

Almost surely, 2^20231250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20231250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27560736).

20231250 is an abundant number, since it is smaller than the sum of its proper divisors (34890222).

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

20231250 is an equidigital number, since it uses as much as digits as its factorization.

20231250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20231250 is about 4497.9161841902. The cubic root of 20231250 is about 272.4839369933.

Adding to 20231250 its reverse (5213202), we get a palindrome (25444452).

The spelling of 20231250 in words is "twenty million, two hundred thirty-one thousand, two hundred fifty".