20807241250 has 20 divisors (see below), whose sum is σ = 39001095342. Its totient is φ = 8322896000.

The previous prime is 20807241229. The next prime is 20807241289. The reversal of 20807241250 is 5214270802.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 1061651889 + 19745589361 = 32583^2 + 140519^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8321647 + ... + 8324146.

Almost surely, 2^20807241250 is an apocalyptic number.

20807241250 is a deficient number, since it is larger than the sum of its proper divisors (18193854092).

20807241250 is an equidigital number, since it uses as much as digits as its factorization.

20807241250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16645815 (or 16645800 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The spelling of 20807241250 in words is "twenty billion, eight hundred seven million, two hundred forty-one thousand, two hundred fifty".