20116525 has 48 divisors (see below), whose sum is σ = 31123008. Its totient is φ = 12672000.

The previous prime is 20116487. The next prime is 20116531. The reversal of 20116525 is 52561102.

20116525 = 885² + 886² + ... + 909².

It is not a de Polignac number, because 20116525 - 2¹⁵ = 20083757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20116496 and 20116505.

It is a congruent number.

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, 60610 + ... + 60940.

It is an arithmetic number, because the mean of its divisors is an integer number (648396).

Almost surely, 2^20116525 is an apocalyptic number.

20116525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20116525 is a deficient number, since it is larger than the sum of its proper divisors (11006483).

20116525 is a wasteful number, since it uses less digits than its factorization.

20116525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 20116525 is about 4485.1449251947. The cubic root of 20116525 is about 271.9679036882.

Adding to 20116525 its reverse (52561102), we get a palindrome (72677627).

The spelling of 20116525 in words is "twenty million, one hundred sixteen thousand, five hundred twenty-five".