20532056 has 32 divisors (see below), whose sum is σ = 41005440. Its totient is φ = 9604608.

The previous prime is 20532049. The next prime is 20532079. The reversal of 20532056 is 65023502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29990 + ... + 30666.

It is an arithmetic number, because the mean of its divisors is an integer number (1281420).

Almost surely, 2^20532056 is an apocalyptic number.

It is an amenable number.

20532056 is a deficient number, since it is larger than the sum of its proper divisors (20473384).

20532056 is a wasteful number, since it uses less digits than its factorization.

20532056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 20532056 is about 4531.2311792713. The cubic root of 20532056 is about 273.8277639559.

Adding to 20532056 its reverse (65023502), we get a palindrome (85555558).

The spelling of 20532056 in words is "twenty million, five hundred thirty-two thousand, fifty-six".