20575152 has 120 divisors (see below), whose sum is σ = 64318800. Its totient is φ = 6096384.

The previous prime is 20575141. The next prime is 20575171. The reversal of 20575152 is 25157502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54099 + ... + 54477.

It is an arithmetic number, because the mean of its divisors is an integer number (535990).

Almost surely, 2^20575152 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 20575152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32159400).

20575152 is an abundant number, since it is smaller than the sum of its proper divisors (43743648).

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

20575152 is a wasteful number, since it uses less digits than its factorization.

20575152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 20575152 is about 4535.9841269564. The cubic root of 20575152 is about 274.0192147358.

It can be divided in two parts, 205 and 75152, that added together give a palindrome (75357).

The spelling of 20575152 in words is "twenty million, five hundred seventy-five thousand, one hundred fifty-two".