20589422551 has 8 divisors (see below), whose sum is σ = 22503809664. Its totient is φ = 18753173760.

The previous prime is 20589422549. The next prime is 20589422573. The reversal of 20589422551 is 15522498502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20589422551 - 2¹ = 20589422549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20589422498 and 20589422507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20589422591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19534030 + ... + 19535083.

It is an arithmetic number, because the mean of its divisors is an integer number (2812976208).

Almost surely, 2^20589422551 is an apocalyptic number.

20589422551 is a deficient number, since it is larger than the sum of its proper divisors (1914387113).

20589422551 is a wasteful number, since it uses less digits than its factorization.

20589422551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39069161.

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 20589422551 in words is "twenty billion, five hundred eighty-nine million, four hundred twenty-two thousand, five hundred fifty-one".