642325 has 6 divisors (see below), whose sum is σ = 796514. Its totient is φ = 513840.

The previous prime is 642281. The next prime is 642359. The reversal of 642325 is 523246.

It is a happy number.

642325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 133956 + 508369 = 366^2 + 713^2 .

It is not a de Polignac number, because 642325 - 2⁷ = 642197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 642296 and 642305.

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, 12822 + ... + 12871.

2⁶⁴²³²⁵ is an apocalyptic number.

It is an amenable number.

642325 is a deficient number, since it is larger than the sum of its proper divisors (154189).

642325 is a wasteful number, since it uses less digits than its factorization.

642325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25703 (or 25698 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 642325 is about 801.4518076591. The cubic root of 642325 is about 86.2816169181.

The spelling of 642325 in words is "six hundred forty-two thousand, three hundred twenty-five".