20253125 has 12 divisors (see below), whose sum is σ = 25318692. Its totient is φ = 16200000.

The previous prime is 20253119. The next prime is 20253127. The reversal of 20253125 is 52135202.

It can be written as a sum of positive squares in 6 ways, for example, as 11621281 + 8631844 = 3409^2 + 2938^2 .

It is not a de Polignac number, because 20253125 - 2⁴ = 20253109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20253097 and 20253106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20253127) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 116 + ... + 6365.

It is an arithmetic number, because the mean of its divisors is an integer number (2109891).

Almost surely, 2^20253125 is an apocalyptic number.

20253125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20253125 is a deficient number, since it is larger than the sum of its proper divisors (5065567).

20253125 is an frugal number, since it uses more digits than its factorization.

20253125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506 (or 6486 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 20253125 is about 4500.3472088273. The cubic root of 20253125 is about 272.5821091959.

Adding to 20253125 its reverse (52135202), we get a palindrome (72388327).

It can be divided in two parts, 20 and 253125, that multiplied together give a square (5062500 = 2250²).

The spelling of 20253125 in words is "twenty million, two hundred fifty-three thousand, one hundred twenty-five".