605251 has 4 divisors (see below), whose sum is σ = 640872. Its totient is φ = 569632.

The previous prime is 605249. The next prime is 605257. The reversal of 605251 is 152506.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152506 = 2 ⋅76253.

It is a cyclic number.

It is not a de Polignac number, because 605251 - 2¹ = 605249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17785 + ... + 17818.

It is an arithmetic number, because the mean of its divisors is an integer number (160218).

2⁶⁰⁵²⁵¹ is an apocalyptic number.

605251 is a deficient number, since it is larger than the sum of its proper divisors (35621).

605251 is a wasteful number, since it uses less digits than its factorization.

605251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35620.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 605251 is about 777.9787914847. The cubic root of 605251 is about 84.5886002744.

Adding to 605251 its reverse (152506), we get a palindrome (757757).

The spelling of 605251 in words is "six hundred five thousand, two hundred fifty-one".