20255510032 has 20 divisors (see below), whose sum is σ = 39409263360. Its totient is φ = 10085377568.

The previous prime is 20255510021. The next prime is 20255510087. The reversal of 20255510032 is 23001555202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20255509979 and 20255510006.

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, 2644648 + ... + 2652295.

It is an arithmetic number, because the mean of its divisors is an integer number (1970463168).

Almost surely, 2^20255510032 is an apocalyptic number.

It is an amenable number.

20255510032 is a deficient number, since it is larger than the sum of its proper divisors (19153753328).

20255510032 is a wasteful number, since it uses less digits than its factorization.

20255510032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5297190 (or 5297184 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 20255510032 in words is "twenty billion, two hundred fifty-five million, five hundred ten thousand, thirty-two".