50453665253 has 4 divisors (see below), whose sum is σ = 50495957868. Its totient is φ = 50411372640.

The previous prime is 50453665219. The next prime is 50453665277. The reversal of 50453665253 is 35256635405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35256635405 = 5 ⋅7051327081.

It can be written as a sum of positive squares in 2 ways, for example, as 40482244804 + 9971420449 = 201202^2 + 99857^2 .

It is a cyclic number.

It is not a de Polignac number, because 50453665253 - 2¹⁰ = 50453664229 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 (50453665453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21144518 + ... + 21146903.

It is an arithmetic number, because the mean of its divisors is an integer number (12623989467).

Almost surely, 2^50453665253 is an apocalyptic number.

It is an amenable number.

50453665253 is a deficient number, since it is larger than the sum of its proper divisors (42292615).

50453665253 is a wasteful number, since it uses less digits than its factorization.

50453665253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42292614.

The product of its (nonzero) digits is 1620000, while the sum is 44.

The spelling of 50453665253 in words is "fifty billion, four hundred fifty-three million, six hundred sixty-five thousand, two hundred fifty-three".