20503600552 has 16 divisors (see below), whose sum is σ = 38448973440. Its totient is φ = 10250540976.

The previous prime is 20503600489. The next prime is 20503600589. The reversal of 20503600552 is 25500630502.

It is a self number, because there is not a number n which added to its sum of digits gives 20503600552.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86328 + ... + 220135.

It is an arithmetic number, because the mean of its divisors is an integer number (2403060840).

Almost surely, 2^20503600552 is an apocalyptic number.

It is an amenable number.

20503600552 is a deficient number, since it is larger than the sum of its proper divisors (17945372888).

20503600552 is a wasteful number, since it uses less digits than its factorization.

20503600552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314832 (or 314828 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

It can be divided in two parts, 20503 and 600552, that added together give a triangular number (621055 = T₁₁₁₄).

The spelling of 20503600552 in words is "twenty billion, five hundred three million, six hundred thousand, five hundred fifty-two".