654725 has 6 divisors (see below), whose sum is σ = 811890. Its totient is φ = 523760.

The previous prime is 654701. The next prime is 654727. The reversal of 654725 is 527456.

It can be written as a sum of positive squares in 3 ways, for example, as 111556 + 543169 = 334^2 + 737^2 .

It is not a de Polignac number, because 654725 - 2¹⁶ = 589189 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 654725.

It is not an unprimeable number, because it can be changed into a prime (654727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13070 + ... + 13119.

It is an arithmetic number, because the mean of its divisors is an integer number (135315).

2⁶⁵⁴⁷²⁵ is an apocalyptic number.

It is an amenable number.

654725 is a deficient number, since it is larger than the sum of its proper divisors (157165).

654725 is a wasteful number, since it uses less digits than its factorization.

654725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26199 (or 26194 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 654725 is about 809.1507894083. The cubic root of 654725 is about 86.8333003816.

The spelling of 654725 in words is "six hundred fifty-four thousand, seven hundred twenty-five".