21460325 has 12 divisors (see below), whose sum is σ = 26694720. Its totient is φ = 17114160.

The previous prime is 21460237. The next prime is 21460331. The reversal of 21460325 is 52306412.

It is not a de Polignac number, because 21460325 - 2¹⁰ = 21459301 is a prime.

It is a super-3 number, since 3×21460325³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21460325.

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, 8006 + ... + 10344.

It is an arithmetic number, because the mean of its divisors is an integer number (2224560).

Almost surely, 2^21460325 is an apocalyptic number.

21460325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21460325 is a deficient number, since it is larger than the sum of its proper divisors (5234395).

21460325 is a wasteful number, since it uses less digits than its factorization.

21460325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 21460325 is about 4632.5290069248. The cubic root of 21460325 is about 277.8937407678.

Adding to 21460325 its reverse (52306412), we get a palindrome (73766737).

The spelling of 21460325 in words is "twenty-one million, four hundred sixty thousand, three hundred twenty-five".