20251550432 has 48 divisors (see below), whose sum is σ = 40353444432. Its totient is φ = 10003768320.

The previous prime is 20251550353. The next prime is 20251550443. The reversal of 20251550432 is 23405515202.

It is a junction number, because it is equal to n+sod(n) for n = 20251550395 and 20251550404.

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, 914078 + ... + 935970.

It is an arithmetic number, because the mean of its divisors is an integer number (840696759).

Almost surely, 2^20251550432 is an apocalyptic number.

It is an amenable number.

20251550432 is a deficient number, since it is larger than the sum of its proper divisors (20101894000).

20251550432 is a wasteful number, since it uses less digits than its factorization.

20251550432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22251 (or 22243 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 20251550432 in words is "twenty billion, two hundred fifty-one million, five hundred fifty thousand, four hundred thirty-two".