253338949 has 2 divisors, whose sum is σ = 253338950. Its totient is φ = 253338948.

The previous prime is 253338923. The next prime is 253338961. The reversal of 253338949 is 949833352.

253338949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244296900 + 9042049 = 15630^2 + 3007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253338949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253338899 and 253338908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253338919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126669474 + 126669475.

It is an arithmetic number, because the mean of its divisors is an integer number (126669475).

Almost surely, 2^253338949 is an apocalyptic number.

It is an amenable number.

253338949 is a deficient number, since it is larger than the sum of its proper divisors (1).

253338949 is an equidigital number, since it uses as much as digits as its factorization.

253338949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 46.

The square root of 253338949 is about 15916.6249249016. The cubic root of 253338949 is about 632.7526725646.

The spelling of 253338949 in words is "two hundred fifty-three million, three hundred thirty-eight thousand, nine hundred forty-nine".