243245510253 has 12 divisors (see below), whose sum is σ = 362688646528. Its totient is φ = 156932587080.

The previous prime is 243245510239. The next prime is 243245510257. The reversal of 243245510253 is 352015542342.

243245510253 is a `hidden beast` number, since 24 + 32 + 4 + 551 + 0 + 2 + 53 = 666.

It is not a de Polignac number, because 243245510253 - 2¹⁰ = 243245509229 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 (243245510257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435923575 + ... + 435924132.

Almost surely, 2^243245510253 is an apocalyptic number.

It is an amenable number.

243245510253 is a deficient number, since it is larger than the sum of its proper divisors (119443136275).

243245510253 is a wasteful number, since it uses less digits than its factorization.

243245510253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871847744 (or 871847741 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 243245510253 in words is "two hundred forty-three billion, two hundred forty-five million, five hundred ten thousand, two hundred fifty-three".