20106325 has 12 divisors (see below), whose sum is σ = 26398980. Its totient is φ = 15138560.

The previous prime is 20106319. The next prime is 20106337. The reversal of 20106325 is 52360102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 904401 + 19201924 = 951^2 + 4382^2 .

It is not a de Polignac number, because 20106325 - 2⁵ = 20106293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23230 + ... + 24079.

It is an arithmetic number, because the mean of its divisors is an integer number (2199915).

Almost surely, 2^20106325 is an apocalyptic number.

20106325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20106325 is a deficient number, since it is larger than the sum of its proper divisors (6292655).

20106325 is a wasteful number, since it uses less digits than its factorization.

20106325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47336 (or 47331 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20106325 is about 4484.0076940166. The cubic root of 20106325 is about 271.9219291870.

Adding to 20106325 its reverse (52360102), we get a palindrome (72466427).

The spelling of 20106325 in words is "twenty million, one hundred six thousand, three hundred twenty-five".