20215024552 has 16 divisors (see below), whose sum is σ = 37906319700. Its totient is φ = 10106672640.

The previous prime is 20215024549. The next prime is 20215024567. The reversal of 20215024552 is 25542051202.

It can be written as a sum of positive squares in 2 ways, for example, as 18603323236 + 1611701316 = 136394^2 + 40146^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20215024552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4024 + ... + 201112.

Almost surely, 2^20215024552 is an apocalyptic number.

It is an amenable number.

20215024552 is a deficient number, since it is larger than the sum of its proper divisors (17691295148).

20215024552 is a wasteful number, since it uses less digits than its factorization.

20215024552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209916 (or 209912 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 20215024552 its reverse (25542051202), we get a palindrome (45757075754).

The spelling of 20215024552 in words is "twenty billion, two hundred fifteen million, twenty-four thousand, five hundred fifty-two".