2684168525 has 24 divisors (see below), whose sum is σ = 3429483624. Its totient is φ = 2082713600.

The previous prime is 2684168521. The next prime is 2684168549. The reversal of 2684168525 is 5258614862.

It can be written as a sum of positive squares in 12 ways, for example, as 671120836 + 2013047689 = 25906^2 + 44867^2 .

It is not a de Polignac number, because 2684168525 - 2² = 2684168521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2684168525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684168521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169757 + ... + 184893.

It is an arithmetic number, because the mean of its divisors is an integer number (142895151).

Almost surely, 2^2684168525 is an apocalyptic number.

2684168525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2684168525 is a deficient number, since it is larger than the sum of its proper divisors (745315099).

2684168525 is a wasteful number, since it uses less digits than its factorization.

2684168525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15361 (or 15356 counting only the distinct ones).

The product of its digits is 921600, while the sum is 47.

The square root of 2684168525 is about 51808.9618212911. The cubic root of 2684168525 is about 1389.7497134021.

The spelling of 2684168525 in words is "two billion, six hundred eighty-four million, one hundred sixty-eight thousand, five hundred twenty-five".