20452552 has 8 divisors (see below), whose sum is σ = 38348550. Its totient is φ = 10226272.

The previous prime is 20452519. The next prime is 20452559. The reversal of 20452552 is 25525402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11655396 + 8797156 = 3414^2 + 2966^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20452559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278277 + ... + 1278292.

Almost surely, 2^20452552 is an apocalyptic number.

It is an amenable number.

20452552 is a deficient number, since it is larger than the sum of its proper divisors (17895998).

20452552 is a wasteful number, since it uses less digits than its factorization.

20452552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556575 (or 2556571 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 20452552 is about 4522.4497786045. The cubic root of 20452552 is about 273.4738691673.

Adding to 20452552 its reverse (25525402), we get a palindrome (45977954).

The spelling of 20452552 in words is "twenty million, four hundred fifty-two thousand, five hundred fifty-two".