234540025 has 6 divisors (see below), whose sum is σ = 290829662. Its totient is φ = 187632000.

The previous prime is 234540013. The next prime is 234540071. The reversal of 234540025 is 520045432.

It can be written as a sum of positive squares in 3 ways, for example, as 28100601 + 206439424 = 5301^2 + 14368^2 .

It is not a de Polignac number, because 234540025 - 2¹⁹ = 234015737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 9381601 = 234540025 / (2 + 3 + 4 + 5 + 4 + 0 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4690776 + ... + 4690825.

Almost surely, 2^234540025 is an apocalyptic number.

234540025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

234540025 is a deficient number, since it is larger than the sum of its proper divisors (56289637).

234540025 is an equidigital number, since it uses as much as digits as its factorization.

234540025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9381611 (or 9381606 counting only the distinct ones).

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

The square root of 234540025 is about 15314.6996379296. The cubic root of 234540025 is about 616.6976909966.

Adding to 234540025 its reverse (520045432), we get a palindrome (754585457).

The spelling of 234540025 in words is "two hundred thirty-four million, five hundred forty thousand, twenty-five".