525620243 has 2 divisors, whose sum is σ = 525620244. Its totient is φ = 525620242.

The previous prime is 525620233. The next prime is 525620257. The reversal of 525620243 is 342026525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 525620243 - 2⁸ = 525619987 is a prime.

It is not a weakly prime, because it can be changed into another prime (525620233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262810121 + 262810122.

It is an arithmetic number, because the mean of its divisors is an integer number (262810122).

Almost surely, 2^525620243 is an apocalyptic number.

525620243 is a deficient number, since it is larger than the sum of its proper divisors (1).

525620243 is an equidigital number, since it uses as much as digits as its factorization.

525620243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 525620243 is about 22926.4092914700. The cubic root of 525620243 is about 807.0318861851.

Adding to 525620243 its reverse (342026525), we get a palindrome (867646768).

The spelling of 525620243 in words is "five hundred twenty-five million, six hundred twenty thousand, two hundred forty-three".