20411125 has 16 divisors (see below), whose sum is σ = 29113344. Its totient is φ = 13995600.

The previous prime is 20411107. The next prime is 20411129. The reversal of 20411125 is 52111402.

It is not a de Polignac number, because 20411125 - 2⁵ = 20411093 is a prime.

It is a super-2 number, since 2×20411125² = 833228047531250, 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 = 20411099 and 20411108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10789 + ... + 12538.

It is an arithmetic number, because the mean of its divisors is an integer number (1819584).

Almost surely, 2^20411125 is an apocalyptic number.

20411125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20411125 is a deficient number, since it is larger than the sum of its proper divisors (8702219).

20411125 is an equidigital number, since it uses as much as digits as its factorization.

20411125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23349 (or 23339 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 20411125 is about 4517.8673065950. The cubic root of 20411125 is about 273.2891023346.

Adding to 20411125 its reverse (52111402), we get a palindrome (72522527).

The spelling of 20411125 in words is "twenty million, four hundred eleven thousand, one hundred twenty-five".