425725 has 6 divisors (see below), whose sum is σ = 527930. Its totient is φ = 340560.

The previous prime is 425713. The next prime is 425779. The reversal of 425725 is 527524.

It can be written as a sum of positive squares in 3 ways, for example, as 68121 + 357604 = 261^2 + 598^2 .

It is not a de Polignac number, because 425725 - 2¹⁵ = 392957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 17029 = 425725 / (4 + 2 + 5 + 7 + 2 + 5).

425725 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 425725.

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, 8490 + ... + 8539.

2⁴²⁵⁷²⁵ is an apocalyptic number.

It is an amenable number.

425725 is a deficient number, since it is larger than the sum of its proper divisors (102205).

425725 is a wasteful number, since it uses less digits than its factorization.

425725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17039 (or 17034 counting only the distinct ones).

The product of its digits is 2800, while the sum is 25.

The square root of 425725 is about 652.4760532004. The cubic root of 425725 is about 75.2274576245.

The spelling of 425725 in words is "four hundred twenty-five thousand, seven hundred twenty-five".