20150243250 has 32 divisors (see below), whose sum is σ = 50295009024. Its totient is φ = 5373398000.

The previous prime is 20150243237. The next prime is 20150243339. The reversal of 20150243250 is 5234205102.

It is a self number, because there is not a number n which added to its sum of digits gives 20150243250.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13432746 + ... + 13434245.

It is an arithmetic number, because the mean of its divisors is an integer number (1571719032).

Almost surely, 2^20150243250 is an apocalyptic number.

20150243250 is an abundant number, since it is smaller than the sum of its proper divisors (30144765774).

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

20150243250 is a wasteful number, since it uses less digits than its factorization.

20150243250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26867011 (or 26867001 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 20150243250 its reverse (5234205102), we get a palindrome (25384448352).

The spelling of 20150243250 in words is "twenty billion, one hundred fifty million, two hundred forty-three thousand, two hundred fifty".