4180725 has 36 divisors (see below), whose sum is σ = 7935876. Its totient is φ = 2096640.

The previous prime is 4180723. The next prime is 4180739. The reversal of 4180725 is 5270814.

It can be written as a sum of positive squares in 6 ways, for example, as 459684 + 3721041 = 678^2 + 1929^2 .

It is not a de Polignac number, because 4180725 - 2¹ = 4180723 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4180723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3279 + ... + 4371.

It is an arithmetic number, because the mean of its divisors is an integer number (220441).

Almost surely, 2^4180725 is an apocalyptic number.

4180725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4180725 is a deficient number, since it is larger than the sum of its proper divisors (3755151).

4180725 is a wasteful number, since it uses less digits than its factorization.

4180725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 4180725 is about 2044.6821268843. The cubic root of 4180725 is about 161.0956698990.

The spelling of 4180725 in words is "four million, one hundred eighty thousand, seven hundred twenty-five".