20739424250 has 32 divisors (see below), whose sum is σ = 38865387600. Its totient is φ = 8286969600.

The previous prime is 20739424229. The next prime is 20739424253. The reversal of 20739424250 is 5242493702.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 900420049 + 19839004201 = 30007^2 + 140851^2 .

It is not an unprimeable number, because it can be changed into a prime (20739424253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194726 + ... + 281774.

Almost surely, 2^20739424250 is an apocalyptic number.

20739424250 is a deficient number, since it is larger than the sum of its proper divisors (18125963350).

20739424250 is an equidigital number, since it uses as much as digits as its factorization.

20739424250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88019 (or 88009 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 20739424250 in words is "twenty billion, seven hundred thirty-nine million, four hundred twenty-four thousand, two hundred fifty".