253967005 has 8 divisors (see below), whose sum is σ = 306026424. Its totient is φ = 202329600.

The previous prime is 253966981. The next prime is 253967041. The reversal of 253967005 is 500769352.

It can be written as a sum of positive squares in 4 ways, for example, as 71014329 + 182952676 = 8427^2 + 13526^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253967005 - 2²¹ = 251869853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104176 + ... + 106585.

It is an arithmetic number, because the mean of its divisors is an integer number (38253303).

Almost surely, 2^253967005 is an apocalyptic number.

It is an amenable number.

253967005 is a deficient number, since it is larger than the sum of its proper divisors (52059419).

253967005 is a wasteful number, since it uses less digits than its factorization.

253967005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211007.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 253967005 is about 15936.3422716758. The cubic root of 253967005 is about 633.2751296158.

The spelling of 253967005 in words is "two hundred fifty-three million, nine hundred sixty-seven thousand, five".