20552508534 has 16 divisors (see below), whose sum is σ = 41106424320. Its totient is φ = 6850601640.

The previous prime is 20552508517. The next prime is 20552508583. The reversal of 20552508534 is 43580525502.

It is a junction number, because it is equal to n+sod(n) for n = 20552508492 and 20552508501.

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, 299379 + ... + 361569.

It is an arithmetic number, because the mean of its divisors is an integer number (2569151520).

Almost surely, 2^20552508534 is an apocalyptic number.

20552508534 is an abundant number, since it is smaller than the sum of its proper divisors (20553915786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20552508534 is a wasteful number, since it uses less digits than its factorization.

20552508534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117275.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 20552508534 in words is "twenty billion, five hundred fifty-two million, five hundred eight thousand, five hundred thirty-four".