20552025 has 48 divisors (see below), whose sum is σ = 37122624. Its totient is φ = 9972480.

The previous prime is 20552011. The next prime is 20552071. The reversal of 20552025 is 52025502.

It is not a de Polignac number, because 20552025 - 2⁴ = 20552009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20551992 and 20552010.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 104227 + ... + 104423.

It is an arithmetic number, because the mean of its divisors is an integer number (773388).

Almost surely, 2^20552025 is an apocalyptic number.

20552025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20552025 is a deficient number, since it is larger than the sum of its proper divisors (16570599).

20552025 is a wasteful number, since it uses less digits than its factorization.

20552025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 20552025 is about 4533.4341287814. The cubic root of 20552025 is about 273.9165080296.

Adding to 20552025 its reverse (52025502), we get a palindrome (72577527).

The spelling of 20552025 in words is "twenty million, five hundred fifty-two thousand, twenty-five".