4185725 has 6 divisors (see below), whose sum is σ = 5190330. Its totient is φ = 3348560.

The previous prime is 4185703. The next prime is 4185739. The reversal of 4185725 is 5275814.

It can be written as a sum of positive squares in 3 ways, for example, as 662596 + 3523129 = 814^2 + 1877^2 .

It is not a de Polignac number, because 4185725 - 2⁶ = 4185661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4185691 and 4185700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83690 + ... + 83739.

It is an arithmetic number, because the mean of its divisors is an integer number (865055).

Almost surely, 2^4185725 is an apocalyptic number.

It is an amenable number.

4185725 is a deficient number, since it is larger than the sum of its proper divisors (1004605).

4185725 is a wasteful number, since it uses less digits than its factorization.

4185725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167439 (or 167434 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 4185725 is about 2045.9044454715. The cubic root of 4185725 is about 161.1598658981.

The spelling of 4185725 in words is "four million, one hundred eighty-five thousand, seven hundred twenty-five".