7725 has 12 divisors (see below), whose sum is σ = 12896. Its totient is φ = 4080.

The previous prime is 7723. The next prime is 7727. The reversal of 7725 is 5277.

7725 is nontrivially palindromic in base 4.

It is an interprime number because it is at equal distance from previous prime (7723) and next prime (7727).

It is not a de Polignac number, because 7725 - 2¹ = 7723 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 12.

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24 + ... + 126.

2⁷⁷²⁵ is an apocalyptic number.

7725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7725 is a deficient number, since it is larger than the sum of its proper divisors (5171).

7725 is a wasteful number, since it uses less digits than its factorization.

7725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 111 counting only the distinct ones).

The product of its digits is 490, while the sum is 21.

The square root of 7725 is about 87.8919791562. The cubic root of 7725 is about 19.7681561395.

It can be divided in two parts, 772 and 5, that added together give a palindrome (777).

The spelling of 7725 in words is "seven thousand, seven hundred twenty-five".