230405625 has 30 divisors (see below), whose sum is σ = 415887186. Its totient is φ = 122880000.

The previous prime is 230405611. The next prime is 230405639. The reversal of 230405625 is 526504032.

230405625 is a `hidden beast` number, since 2 + 30 + 4 + 0 + 5 + 625 = 666.

It is an interprime number because it is at equal distance from previous prime (230405611) and next prime (230405639).

It can be written as a sum of positive squares in 5 ways, for example, as 41370624 + 189035001 = 6432^2 + 13749^2 .

It is a de Polignac number, because none of the positive numbers 2^k-230405625 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 14856 + ... + 26105.

Almost surely, 2^230405625 is an apocalyptic number.

230405625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

230405625 is a deficient number, since it is larger than the sum of its proper divisors (185481561).

230405625 is an equidigital number, since it uses as much as digits as its factorization.

230405625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40987 (or 40969 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 230405625 is about 15179.1180573840. The cubic root of 230405625 is about 613.0525348679.

Adding to 230405625 its reverse (526504032), we get a palindrome (756909657).

The spelling of 230405625 in words is "two hundred thirty million, four hundred five thousand, six hundred twenty-five".