20412325 has 12 divisors (see below), whose sum is σ = 26800740. Its totient is φ = 15368960.

The previous prime is 20412319. The next prime is 20412349. The reversal of 20412325 is 52321402.

It is a Cunningham number, because it is equal to 4518²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 1 + 20412324 = 1^2 + 4518^2 .

It is not a de Polignac number, because 20412325 - 2¹³ = 20404133 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, 23590 + ... + 24439.

It is an arithmetic number, because the mean of its divisors is an integer number (2233395).

Almost surely, 2^20412325 is an apocalyptic number.

20412325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20412325 is a deficient number, since it is larger than the sum of its proper divisors (6388415).

20412325 is a wasteful number, since it uses less digits than its factorization.

20412325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48056 (or 48051 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20412325 is about 4518.0001106684. Note that the first 3 decimals coincide. The cubic root of 20412325 is about 273.2944579188.

Adding to 20412325 its reverse (52321402), we get a palindrome (72733727).

The spelling of 20412325 in words is "twenty million, four hundred twelve thousand, three hundred twenty-five".