20325851 has 8 divisors (see below), whose sum is σ = 25016544. Its totient is φ = 16081920.

The previous prime is 20325847. The next prime is 20325853. The reversal of 20325851 is 15852302.

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 20325851 - 2² = 20325847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20325851.

It is not an unprimeable number, because it can be changed into a prime (20325853) 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, 111590 + ... + 111771.

It is an arithmetic number, because the mean of its divisors is an integer number (3127068).

Almost surely, 2^20325851 is an apocalyptic number.

20325851 is a deficient number, since it is larger than the sum of its proper divisors (4690693).

20325851 is a wasteful number, since it uses less digits than its factorization.

20325851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223381.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 20325851 is about 4508.4200114896. The cubic root of 20325851 is about 272.9079868990.

The spelling of 20325851 in words is "twenty million, three hundred twenty-five thousand, eight hundred fifty-one".