20514225 has 24 divisors (see below), whose sum is σ = 34711072. Its totient is φ = 10684800.

The previous prime is 20514191. The next prime is 20514251. The reversal of 20514225 is 52241502.

It is a happy number.

It is not a de Polignac number, because 20514225 - 2¹⁶ = 20448689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45 + ... + 6405.

Almost surely, 2^20514225 is an apocalyptic number.

20514225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20514225 is a deficient number, since it is larger than the sum of its proper divisors (14196847).

20514225 is a wasteful number, since it uses less digits than its factorization.

20514225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417 (or 6412 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 20514225 is about 4529.2631851108. The cubic root of 20514225 is about 273.7484727089.

Adding to 20514225 its reverse (52241502), we get a palindrome (72755727).

The spelling of 20514225 in words is "twenty million, five hundred fourteen thousand, two hundred twenty-five".