253000001 has 8 divisors (see below), whose sum is σ = 272274984. Its totient is φ = 234213120.

The previous prime is 252999893. The next prime is 253000037. The reversal of 253000001 is 100000352.

It can be written as a sum of positive squares in 4 ways, for example, as 30976 + 252969025 = 176^2 + 15905^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253000061) 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 7 ways as a sum of consecutive naturals, for example, 120950 + ... + 123023.

It is an arithmetic number, because the mean of its divisors is an integer number (34034373).

Almost surely, 2^253000001 is an apocalyptic number.

It is an amenable number.

253000001 is a deficient number, since it is larger than the sum of its proper divisors (19274983).

253000001 is a wasteful number, since it uses less digits than its factorization.

253000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244051.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 253000001 is about 15905.9737520216. The cubic root of 253000001 is about 632.4703551750.

Adding to 253000001 its reverse (100000352), we get a palindrome (353000353).

The spelling of 253000001 in words is "two hundred fifty-three million, one", and thus it is an aban number.