230440525 has 48 divisors (see below), whose sum is σ = 357834240. Its totient is φ = 143539200.

The previous prime is 230440523. The next prime is 230440543. The reversal of 230440525 is 525044032.

It is not a de Polignac number, because 230440525 - 2¹ = 230440523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 230440525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230440523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84940 + ... + 87610.

It is an arithmetic number, because the mean of its divisors is an integer number (7454880).

Almost surely, 2^230440525 is an apocalyptic number.

230440525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

230440525 is a deficient number, since it is larger than the sum of its proper divisors (127393715).

230440525 is a wasteful number, since it uses less digits than its factorization.

230440525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734 (or 2729 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 230440525 is about 15180.2676195119. The cubic root of 230440525 is about 613.0834867357.

Adding to 230440525 its reverse (525044032), we get a palindrome (755484557).

The spelling of 230440525 in words is "two hundred thirty million, four hundred forty thousand, five hundred twenty-five".