308025 has 27 divisors (see below), whose sum is σ = 567021. Its totient is φ = 159840.

The previous prime is 308017. The next prime is 308027. The reversal of 308025 is 520803.

Added to its reverse (520803) it gives a triangular number (828828 = T₁₂₈₇).

The square root of 308025 is 555.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 29241 + 278784 = 171^2 + 528^2 .

It is not a de Polignac number, because 308025 - 2³ = 308017 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 307989 and 308007.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308025.

It is not an unprimeable number, because it can be changed into a prime (308027) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8307 + ... + 8343.

2³⁰⁸⁰²⁵ is an apocalyptic number.

308025 is the 555-th square number.

308025 is the 278-th centered octagonal number.

It is an amenable number.

308025 is a deficient number, since it is larger than the sum of its proper divisors (258996).

308025 is a wasteful number, since it uses less digits than its factorization.

308025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The cubic root of 308025 is about 67.5349613127.

Adding to 308025 its reverse (520803), we get a palindrome (828828).

The spelling of 308025 in words is "three hundred eight thousand, twenty-five".