253317603798 has 32 divisors (see below), whose sum is σ = 643346296320. Its totient is φ = 72376458120.

The previous prime is 253317603743. The next prime is 253317603821. The reversal of 253317603798 is 897306713352.

253317603798 is a `hidden beast` number, since 2 + 533 + 1 + 76 + 0 + 37 + 9 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335075818 + ... + 335076573.

It is an arithmetic number, because the mean of its divisors is an integer number (20104571760).

Almost surely, 2^253317603798 is an apocalyptic number.

253317603798 is an abundant number, since it is smaller than the sum of its proper divisors (390028692522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253317603798 is a wasteful number, since it uses less digits than its factorization.

253317603798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670152409 (or 670152403 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 253317603798 in words is "two hundred fifty-three billion, three hundred seventeen million, six hundred three thousand, seven hundred ninety-eight".