253407929 has 2 divisors, whose sum is σ = 253407930. Its totient is φ = 253407928.

The previous prime is 253407923. The next prime is 253407943. The reversal of 253407929 is 929704352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209583529 + 43824400 = 14477^2 + 6620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253407929 is a prime.

It is not a weakly prime, because it can be changed into another prime (253407923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126703964 + 126703965.

It is an arithmetic number, because the mean of its divisors is an integer number (126703965).

Almost surely, 2^253407929 is an apocalyptic number.

It is an amenable number.

253407929 is a deficient number, since it is larger than the sum of its proper divisors (1).

253407929 is an equidigital number, since it uses as much as digits as its factorization.

253407929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 253407929 is about 15918.7916940954. The cubic root of 253407929 is about 632.8100967107.

The spelling of 253407929 in words is "two hundred fifty-three million, four hundred seven thousand, nine hundred twenty-nine".