21325555327 has 8 divisors (see below), whose sum is σ = 22582053936. Its totient is φ = 20069284992.

The previous prime is 21325555319. The next prime is 21325555337. The reversal of 21325555327 is 72355552312.

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

It is not a de Polignac number, because 21325555327 - 2³ = 21325555319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21325555327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21325555337) 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, 158593 + ... + 260389.

It is an arithmetic number, because the mean of its divisors is an integer number (2822756742).

Almost surely, 2^21325555327 is an apocalyptic number.

21325555327 is a deficient number, since it is larger than the sum of its proper divisors (1256498609).

21325555327 is a wasteful number, since it uses less digits than its factorization.

21325555327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114137.

The product of its digits is 315000, while the sum is 40.

The spelling of 21325555327 in words is "twenty-one billion, three hundred twenty-five million, five hundred fifty-five thousand, three hundred twenty-seven".