7187725 has 12 divisors (see below), whose sum is σ = 8999424. Its totient is φ = 5694320.

The previous prime is 7187683. The next prime is 7187743. The reversal of 7187725 is 5277817.

It is not a de Polignac number, because 7187725 - 2¹¹ = 7185677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1332 + ... + 4018.

It is an arithmetic number, because the mean of its divisors is an integer number (749952).

Almost surely, 2^7187725 is an apocalyptic number.

It is an amenable number.

7187725 is a deficient number, since it is larger than the sum of its proper divisors (1811699).

7187725 is a wasteful number, since it uses less digits than its factorization.

7187725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804 (or 2799 counting only the distinct ones).

The product of its digits is 27440, while the sum is 37.

The square root of 7187725 is about 2680.9932860789. The cubic root of 7187725 is about 192.9880794807.

The spelling of 7187725 in words is "seven million, one hundred eighty-seven thousand, seven hundred twenty-five".