20765052 has 144 divisors (see below), whose sum is σ = 67925760. Its totient is φ = 5369760.

The previous prime is 20765051. The next prime is 20765077. The reversal of 20765052 is 25056702.

20765052 is a `hidden beast` number, since 2 + 0 + 7 + 650 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20765051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91363 + ... + 91589.

Almost surely, 2^20765052 is an apocalyptic number.

20765052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20765052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33962880).

20765052 is an abundant number, since it is smaller than the sum of its proper divisors (47160708).

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

20765052 is a wasteful number, since it uses less digits than its factorization.

20765052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 250 counting only the distinct ones).

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

The square root of 20765052 is about 4556.8686617018. The cubic root of 20765052 is about 274.8596617280.

It can be divided in two parts, 207650 and 52, that added together give a palindrome (207702).

The spelling of 20765052 in words is "twenty million, seven hundred sixty-five thousand, fifty-two".