253609856336 has 20 divisors (see below), whose sum is σ = 492949071264. Its totient is φ = 126397192800.

The previous prime is 253609856251. The next prime is 253609856389. The reversal of 253609856336 is 633658906352.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 25478330 + ... + 25488281.

Almost surely, 2^253609856336 is an apocalyptic number.

It is an amenable number.

253609856336 is a deficient number, since it is larger than the sum of its proper divisors (239339214928).

253609856336 is a wasteful number, since it uses less digits than its factorization.

253609856336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50966930 (or 50966924 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 56.

The spelling of 253609856336 in words is "two hundred fifty-three billion, six hundred nine million, eight hundred fifty-six thousand, three hundred thirty-six".