2613725 has 6 divisors (see below), whose sum is σ = 3241050. Its totient is φ = 2090960.

The previous prime is 2613719. The next prime is 2613727. The reversal of 2613725 is 5273162.

It can be written as a sum of positive squares in 3 ways, for example, as 88804 + 2524921 = 298^2 + 1589^2 .

It is not a de Polignac number, because 2613725 - 2²⁰ = 1565149 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2613694 and 2613703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2613727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52250 + ... + 52299.

It is an arithmetic number, because the mean of its divisors is an integer number (540175).

2^2613725 is an apocalyptic number.

2613725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2613725 is a deficient number, since it is larger than the sum of its proper divisors (627325).

2613725 is a wasteful number, since it uses less digits than its factorization.

2613725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104559 (or 104554 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 2613725 is about 1616.7018896507. The cubic root of 2613725 is about 137.7484214298.

Adding to 2613725 its reverse (5273162), we get a palindrome (7886887).

It can be divided in two parts, 26137 and 25, that added together give a palindrome (26162).

The spelling of 2613725 in words is "two million, six hundred thirteen thousand, seven hundred twenty-five".