232511425 has 12 divisors (see below), whose sum is σ = 291289516. Its totient is φ = 184089600.

The previous prime is 232511423. The next prime is 232511437. The reversal of 232511425 is 524115232.

It can be written as a sum of positive squares in 6 ways, for example, as 5948721 + 226562704 = 2439^2 + 15052^2 .

It is not a de Polignac number, because 232511425 - 2¹ = 232511423 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 232511425.

It is not an unprimeable number, because it can be changed into a prime (232511423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45516 + ... + 50365.

Almost surely, 2^232511425 is an apocalyptic number.

232511425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

232511425 is a deficient number, since it is larger than the sum of its proper divisors (58778091).

232511425 is an equidigital number, since it uses as much as digits as its factorization.

232511425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95988 (or 95983 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 232511425 is about 15248.3253178833. The cubic root of 232511425 is about 614.9145451583.

Adding to 232511425 its reverse (524115232), we get a palindrome (756626657).

The spelling of 232511425 in words is "two hundred thirty-two million, five hundred eleven thousand, four hundred twenty-five".