20825999952 has 40 divisors (see below), whose sum is σ = 53819430336. Its totient is φ = 6939557376.

The previous prime is 20825999947. The next prime is 20825999989. The reversal of 20825999952 is 25999952802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64173 + ... + 213939.

Almost surely, 2^20825999952 is an apocalyptic number.

It is an amenable number.

20825999952 is an abundant number, since it is smaller than the sum of its proper divisors (32993430384).

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

20825999952 is a wasteful number, since it uses less digits than its factorization.

20825999952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152675 (or 152669 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 60.

The spelling of 20825999952 in words is "twenty billion, eight hundred twenty-five million, nine hundred ninety-nine thousand, nine hundred fifty-two".