20325051 has 6 divisors (see below), whose sum is σ = 29358420. Its totient is φ = 13550028.

The previous prime is 20325049. The next prime is 20325059. The reversal of 20325051 is 15052302.

It is a happy number.

It is not a de Polignac number, because 20325051 - 2¹ = 20325049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20325059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1129161 + ... + 1129178.

It is an arithmetic number, because the mean of its divisors is an integer number (4893070).

Almost surely, 2^20325051 is an apocalyptic number.

20325051 is a deficient number, since it is larger than the sum of its proper divisors (9033369).

20325051 is a wasteful number, since it uses less digits than its factorization.

20325051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258345 (or 2258342 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 20325051 is about 4508.3312877383. The cubic root of 20325051 is about 272.9044064134.

Adding to 20325051 its reverse (15052302), we get a palindrome (35377353).

The spelling of 20325051 in words is "twenty million, three hundred twenty-five thousand, fifty-one".