53512421535 has 24 divisors (see below), whose sum is σ = 95953309920. Its totient is φ = 27555820992.

The previous prime is 53512421527. The next prime is 53512421561.

53512421535 is a `hidden beast` number, since 53 + 51 + 2 + 4 + 21 + 535 = 666.

53512421535 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53512421535 - 2³ = 53512421527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53512421535.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20501539 + ... + 20504148.

It is an arithmetic number, because the mean of its divisors is an integer number (3998054580).

Almost surely, 2^53512421535 is an apocalyptic number.

53512421535 is a deficient number, since it is larger than the sum of its proper divisors (42440888385).

53512421535 is a wasteful number, since it uses less digits than its factorization.

53512421535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41005727 (or 41005724 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 53512421535 in words is "fifty-three billion, five hundred twelve million, four hundred twenty-one thousand, five hundred thirty-five".