20522204525 has 24 divisors (see below), whose sum is σ = 26771277600. Its totient is φ = 15582929600.

The previous prime is 20522204471. The next prime is 20522204533. The reversal of 20522204525 is 52540222502.

It is not a de Polignac number, because 20522204525 - 2³⁴ = 3342335341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197111 + ... + 282660.

It is an arithmetic number, because the mean of its divisors is an integer number (1115469900).

Almost surely, 2^20522204525 is an apocalyptic number.

20522204525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20522204525 is a deficient number, since it is larger than the sum of its proper divisors (6249073075).

20522204525 is a wasteful number, since it uses less digits than its factorization.

20522204525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479869 (or 479864 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The spelling of 20522204525 in words is "twenty billion, five hundred twenty-two million, two hundred four thousand, five hundred twenty-five".