208232415253 has 8 divisors (see below), whose sum is σ = 209187783000. Its totient is φ = 207277448448.

The previous prime is 208232415229. The next prime is 208232415271. The reversal of 208232415253 is 352514232802.

It can be written as a sum of positive squares in 4 ways, for example, as 182347788484 + 25884626769 = 427022^2 + 160887^2 .

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-208232415253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208232415953) 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, 966825 + ... + 1162417.

It is an arithmetic number, because the mean of its divisors is an integer number (26148472875).

Almost surely, 2^208232415253 is an apocalyptic number.

It is an amenable number.

208232415253 is a deficient number, since it is larger than the sum of its proper divisors (955367747).

208232415253 is a wasteful number, since it uses less digits than its factorization.

208232415253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200471.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 208232415253 in words is "two hundred eight billion, two hundred thirty-two million, four hundred fifteen thousand, two hundred fifty-three".