253944953 has 2 divisors, whose sum is σ = 253944954. Its totient is φ = 253944952.

The previous prime is 253944923. The next prime is 253945019. The reversal of 253944953 is 359449352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240498064 + 13446889 = 15508^2 + 3667^2 .

It is a cyclic number.

It is not a de Polignac number, because 253944953 - 2⁸ = 253944697 is a prime.

It is not a weakly prime, because it can be changed into another prime (253944913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126972476 + 126972477.

It is an arithmetic number, because the mean of its divisors is an integer number (126972477).

Almost surely, 2^253944953 is an apocalyptic number.

It is an amenable number.

253944953 is a deficient number, since it is larger than the sum of its proper divisors (1).

253944953 is an equidigital number, since it uses as much as digits as its factorization.

253944953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 44.

The square root of 253944953 is about 15935.6503789459. The cubic root of 253944953 is about 633.2567999547.

The spelling of 253944953 in words is "two hundred fifty-three million, nine hundred forty-four thousand, nine hundred fifty-three".