230125520 has 40 divisors (see below), whose sum is σ = 541070280. Its totient is φ = 91013120.

The previous prime is 230125513. The next prime is 230125529. The reversal of 230125520 is 25521032.

It can be written as a sum of positive squares in 4 ways, for example, as 1752976 + 228372544 = 1324^2 + 15112^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 230125492 and 230125501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230125529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9041 + ... + 23280.

It is an arithmetic number, because the mean of its divisors is an integer number (13526757).

Almost surely, 2^230125520 is an apocalyptic number.

230125520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230125520 is an abundant number, since it is smaller than the sum of its proper divisors (310944760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230125520 is a wasteful number, since it uses less digits than its factorization.

230125520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32423 (or 32417 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 230125520 is about 15169.8885955039. Note that the first 3 decimals coincide. The cubic root of 230125520 is about 612.8040040232.

Adding to 230125520 its reverse (25521032), we get a palindrome (255646552).

The spelling of 230125520 in words is "two hundred thirty million, one hundred twenty-five thousand, five hundred twenty".