52503421653 has 24 divisors (see below), whose sum is σ = 79453127936. Its totient is φ = 33367593600.

The previous prime is 52503421631. The next prime is 52503421657. The reversal of 52503421653 is 35612430525.

52503421653 is a `hidden beast` number, since 5 + 250 + 342 + 1 + 65 + 3 = 666.

52503421653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52503421653 - 2⁶ = 52503421589 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 (52503421657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1385668 + ... + 1423053.

Almost surely, 2^52503421653 is an apocalyptic number.

It is an amenable number.

52503421653 is a deficient number, since it is larger than the sum of its proper divisors (26949706283).

52503421653 is a wasteful number, since it uses less digits than its factorization.

52503421653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808825 (or 2808822 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 52503421653 in words is "fifty-two billion, five hundred three million, four hundred twenty-one thousand, six hundred fifty-three".