2661725 has 12 divisors (see below), whose sum is σ = 3600960. Its totient is φ = 1935600.

The previous prime is 2661689. The next prime is 2661731. The reversal of 2661725 is 5271662.

It is not a de Polignac number, because 2661725 - 2⁶ = 2661661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4565 + ... + 5114.

It is an arithmetic number, because the mean of its divisors is an integer number (300080).

2^2661725 is an apocalyptic number.

2661725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2661725 is a deficient number, since it is larger than the sum of its proper divisors (939235).

2661725 is a wasteful number, since it uses less digits than its factorization.

2661725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9700 (or 9695 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 2661725 is about 1631.4793900016. The cubic root of 2661725 is about 138.5865428959.

It can be divided in two parts, 266 and 1725, that added together give a palindrome (1991).

The spelling of 2661725 in words is "two million, six hundred sixty-one thousand, seven hundred twenty-five".