20125716 has 24 divisors (see below), whose sum is σ = 50572704. Its totient is φ = 6192480.

The previous prime is 20125697. The next prime is 20125723. The reversal of 20125716 is 61752102.

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, 64350 + ... + 64661.

It is an arithmetic number, because the mean of its divisors is an integer number (2107196).

Almost surely, 2^20125716 is an apocalyptic number.

20125716 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20125716 is an abundant number, since it is smaller than the sum of its proper divisors (30446988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20125716 is a wasteful number, since it uses less digits than its factorization.

20125716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129031 (or 129029 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 20125716 is about 4486.1694127618. The cubic root of 20125716 is about 272.0093170107.

Adding to 20125716 its reverse (61752102), we get a palindrome (81877818).

The spelling of 20125716 in words is "twenty million, one hundred twenty-five thousand, seven hundred sixteen".