20282125 has 8 divisors (see below), whose sum is σ = 25312248. Its totient is φ = 16225600.

The previous prime is 20282083. The next prime is 20282131. The reversal of 20282125 is 52128202.

It can be written as a sum of positive squares in 4 ways, for example, as 4813636 + 15468489 = 2194^2 + 3933^2 .

It is not a de Polignac number, because 20282125 - 2⁷ = 20281997 is a prime.

It is a super-2 number, since 2×20282125² = 822729189031250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20282096 and 20282105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81004 + ... + 81253.

It is an arithmetic number, because the mean of its divisors is an integer number (3164031).

Almost surely, 2^20282125 is an apocalyptic number.

20282125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20282125 is a deficient number, since it is larger than the sum of its proper divisors (5030123).

20282125 is an equidigital number, since it uses as much as digits as its factorization.

20282125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162272 (or 162262 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 20282125 is about 4503.5680299070. The cubic root of 20282125 is about 272.7121485721.

The spelling of 20282125 in words is "twenty million, two hundred eighty-two thousand, one hundred twenty-five".