253316389 has 2 divisors, whose sum is σ = 253316390. Its totient is φ = 253316388.

The previous prime is 253316387. The next prime is 253316431. The reversal of 253316389 is 983613352.

253316389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238455364 + 14861025 = 15442^2 + 3855^2 .

It is a cyclic number.

It is not a de Polignac number, because 253316389 - 2¹ = 253316387 is a prime.

Together with 253316387, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253316387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126658194 + 126658195.

It is an arithmetic number, because the mean of its divisors is an integer number (126658195).

Almost surely, 2^253316389 is an apocalyptic number.

It is an amenable number.

253316389 is a deficient number, since it is larger than the sum of its proper divisors (1).

253316389 is an equidigital number, since it uses as much as digits as its factorization.

253316389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 40.

The square root of 253316389 is about 15915.9162161655. The cubic root of 253316389 is about 632.7338896598.

The spelling of 253316389 in words is "two hundred fifty-three million, three hundred sixteen thousand, three hundred eighty-nine".