20531422524 has 24 divisors (see below), whose sum is σ = 47936620368. Its totient is φ = 6839526400.

The previous prime is 20531422451. The next prime is 20531422531. The reversal of 20531422524 is 42522413502.

It is a junction number, because it is equal to n+sod(n) for n = 20531422491 and 20531422500.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 515127 + ... + 553550.

It is an arithmetic number, because the mean of its divisors is an integer number (1997359182).

Almost surely, 2^20531422524 is an apocalyptic number.

It is an amenable number.

20531422524 is an abundant number, since it is smaller than the sum of its proper divisors (27405197844).

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

20531422524 is a wasteful number, since it uses less digits than its factorization.

20531422524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070285 (or 1070283 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 20531422524 in words is "twenty billion, five hundred thirty-one million, four hundred twenty-two thousand, five hundred twenty-four".