20650752 has 54 divisors (see below), whose sum is σ = 59547852. Its totient is φ = 6882816.

The previous prime is 20650691. The next prime is 20650753. The reversal of 20650752 is 25705602.

20650752 is a `hidden beast` number, since 2 + 0 + 650 + 7 + 5 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (20650753) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2178 + ... + 6785.

It is an arithmetic number, because the mean of its divisors is an integer number (1102738).

Almost surely, 2^20650752 is an apocalyptic number.

It is an amenable number.

20650752 is an abundant number, since it is smaller than the sum of its proper divisors (38897100).

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

20650752 is an equidigital number, since it uses as much as digits as its factorization.

20650752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8985 (or 8968 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 20650752 is about 4544.3098485909. The cubic root of 20650752 is about 274.3544173137.

The spelling of 20650752 in words is "twenty million, six hundred fifty thousand, seven hundred fifty-two".