20007752 has 8 divisors (see below), whose sum is σ = 37514550. Its totient is φ = 10003872.

The previous prime is 20007749. The next prime is 20007773. The reversal of 20007752 is 25770002.

It can be written as a sum of positive squares in only one way, i.e., 13586596 + 6421156 = 3686^2 + 2534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250477 + ... + 1250492.

Almost surely, 2^20007752 is an apocalyptic number.

It is an amenable number.

20007752 is a deficient number, since it is larger than the sum of its proper divisors (17506798).

20007752 is a wasteful number, since it uses less digits than its factorization.

20007752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500975 (or 2500971 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 20007752 is about 4473.0025709807. The cubic root of 20007752 is about 271.4768274050.

Subtracting from 20007752 its sum of digits (23), we obtain a square (20007729 = 4473²).

Adding to 20007752 its reverse (25770002), we get a palindrome (45777754).

The spelling of 20007752 in words is "twenty million, seven thousand, seven hundred fifty-two".