253020433 has 2 divisors, whose sum is σ = 253020434. Its totient is φ = 253020432.

The previous prime is 253020431. The next prime is 253020451. The reversal of 253020433 is 334020352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152078224 + 100942209 = 12332^2 + 10047^2 .

It is a cyclic number.

It is not a de Polignac number, because 253020433 - 2¹ = 253020431 is a prime.

Together with 253020431, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (253020431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126510216 + 126510217.

It is an arithmetic number, because the mean of its divisors is an integer number (126510217).

Almost surely, 2^253020433 is an apocalyptic number.

It is an amenable number.

253020433 is a deficient number, since it is larger than the sum of its proper divisors (1).

253020433 is an equidigital number, since it uses as much as digits as its factorization.

253020433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 253020433 is about 15906.6160134706. The cubic root of 253020433 is about 632.4873805853.

Adding to 253020433 its reverse (334020352), we get a palindrome (587040785).

The spelling of 253020433 in words is "two hundred fifty-three million, twenty thousand, four hundred thirty-three".