20825952 has 96 divisors (see below), whose sum is σ = 66189312. Its totient is φ = 5597184.

The previous prime is 20825939. The next prime is 20825963. The reversal of 20825952 is 25952802.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10513 + ... + 12335.

It is an arithmetic number, because the mean of its divisors is an integer number (689472).

Almost surely, 2^20825952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20825952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33094656).

20825952 is an abundant number, since it is smaller than the sum of its proper divisors (45363360).

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

20825952 is a wasteful number, since it uses less digits than its factorization.

20825952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 20825952 is about 4563.5459896883. The cubic root of 20825952 is about 275.1281034017.

The spelling of 20825952 in words is "twenty million, eight hundred twenty-five thousand, nine hundred fifty-two".