253955129 has 4 divisors (see below), whose sum is σ = 268893684. Its totient is φ = 239016576.

The previous prime is 253955111. The next prime is 253955173. The reversal of 253955129 is 921559352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 231648400 + 22306729 = 15220^2 + 4723^2 .

It is a cyclic number.

It is not a de Polignac number, because 253955129 - 2⁸ = 253954873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253955179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7469252 + ... + 7469285.

It is an arithmetic number, because the mean of its divisors is an integer number (67223421).

Almost surely, 2^253955129 is an apocalyptic number.

It is an amenable number.

253955129 is a deficient number, since it is larger than the sum of its proper divisors (14938555).

253955129 is a wasteful number, since it uses less digits than its factorization.

253955129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14938554.

The product of its digits is 121500, while the sum is 41.

The square root of 253955129 is about 15935.9696598607. The cubic root of 253955129 is about 633.2652583956.

The spelling of 253955129 in words is "two hundred fifty-three million, nine hundred fifty-five thousand, one hundred twenty-nine".