20445526250 has 40 divisors (see below), whose sum is σ = 38352876276. Its totient is φ = 8171856000.

The previous prime is 20445526249. The next prime is 20445526261. The reversal of 20445526250 is 5262554402.

It can be written as a sum of positive squares in 10 ways, for example, as 1005080209 + 19440446041 = 31703^2 + 139429^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20445526250.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1810622 + ... + 1821878.

Almost surely, 2^20445526250 is an apocalyptic number.

20445526250 is a deficient number, since it is larger than the sum of its proper divisors (17907350026).

20445526250 is a wasteful number, since it uses less digits than its factorization.

20445526250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12732 (or 12717 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 20445526250 in words is "twenty billion, four hundred forty-five million, five hundred twenty-six thousand, two hundred fifty".