253598859397 has 8 divisors (see below), whose sum is σ = 273117060216. Its totient is φ = 234082172352.

The previous prime is 253598859373. The next prime is 253598859431. The reversal of 253598859397 is 793958895352.

It is a Cunningham number, because it is equal to 503586²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 37514266596 + 216084592801 = 193686^2 + 464849^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 253598859397 - 2¹¹ = 253598857349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253598859797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17758 + ... + 712399.

It is an arithmetic number, because the mean of its divisors is an integer number (34139632527).

Almost surely, 2^253598859397 is an apocalyptic number.

It is an amenable number.

253598859397 is a deficient number, since it is larger than the sum of its proper divisors (19518200819).

253598859397 is a wasteful number, since it uses less digits than its factorization.

253598859397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756887.

The product of its digits is 734832000, while the sum is 73.

The spelling of 253598859397 in words is "two hundred fifty-three billion, five hundred ninety-eight million, eight hundred fifty-nine thousand, three hundred ninety-seven".