253340234033 has 4 divisors (see below), whose sum is σ = 254139414900. Its totient is φ = 252541053168.

The previous prime is 253340234029. The next prime is 253340234057. The reversal of 253340234033 is 330432043352.

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 149187517504 + 104152716529 = 386248^2 + 322727^2 .

It is a cyclic number.

It is not a de Polignac number, because 253340234033 - 2² = 253340234029 is a prime.

It is a super-2 number, since 2×253340234033² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253340234083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399589958 + ... + 399590591.

It is an arithmetic number, because the mean of its divisors is an integer number (63534853725).

Almost surely, 2^253340234033 is an apocalyptic number.

It is an amenable number.

253340234033 is a deficient number, since it is larger than the sum of its proper divisors (799180867).

253340234033 is an equidigital number, since it uses as much as digits as its factorization.

253340234033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799180866.

The product of its (nonzero) digits is 77760, while the sum is 32.

Adding to 253340234033 its reverse (330432043352), we get a palindrome (583772277385).

The spelling of 253340234033 in words is "two hundred fifty-three billion, three hundred forty million, two hundred thirty-four thousand, thirty-three".