20528804054 has 32 divisors (see below), whose sum is σ = 36000550656. Its totient is φ = 8684327520.

The previous prime is 20528804039. The next prime is 20528804057. The reversal of 20528804054 is 45040882502.

It is a junction number, because it is equal to n+sod(n) for n = 20528803999 and 20528804017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20528804057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529532 + ... + 566975.

It is an arithmetic number, because the mean of its divisors is an integer number (1125017208).

Almost surely, 2^20528804054 is an apocalyptic number.

20528804054 is a deficient number, since it is larger than the sum of its proper divisors (15471746602).

20528804054 is a wasteful number, since it uses less digits than its factorization.

20528804054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096580.

The product of its (nonzero) digits is 102400, while the sum is 38.

The spelling of 20528804054 in words is "twenty billion, five hundred twenty-eight million, eight hundred four thousand, fifty-four".