654425 has 6 divisors (see below), whose sum is σ = 811518. Its totient is φ = 523520.

The previous prime is 654421. The next prime is 654427. The reversal of 654425 is 524456.

It can be written as a sum of positive squares in 3 ways, for example, as 175561 + 478864 = 419^2 + 692^2 .

It is not a de Polignac number, because 654425 - 2² = 654421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 654394 and 654403.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 654425.

It is not an unprimeable number, because it can be changed into a prime (654421) 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, 13064 + ... + 13113.

It is an arithmetic number, because the mean of its divisors is an integer number (135253).

2⁶⁵⁴⁴²⁵ is an apocalyptic number.

It is an amenable number.

654425 is a deficient number, since it is larger than the sum of its proper divisors (157093).

654425 is a wasteful number, since it uses less digits than its factorization.

654425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26187 (or 26182 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 654425 is about 808.9653886292. The cubic root of 654425 is about 86.8200357948.

The spelling of 654425 in words is "six hundred fifty-four thousand, four hundred twenty-five".