53634651523 has 4 divisors (see below), whose sum is σ = 53635519600. Its totient is φ = 53633783448.

The previous prime is 53634651503. The next prime is 53634651541. The reversal of 53634651523 is 32515643635.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53634651523 - 2⁵ = 53634651491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53634651523.

It is not an unprimeable number, because it can be changed into a prime (53634651503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333615 + ... + 467512.

It is an arithmetic number, because the mean of its divisors is an integer number (13408879900).

Almost surely, 2^53634651523 is an apocalyptic number.

53634651523 is a deficient number, since it is larger than the sum of its proper divisors (868077).

53634651523 is an equidigital number, since it uses as much as digits as its factorization.

53634651523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868076.

The product of its digits is 972000, while the sum is 43.

The spelling of 53634651523 in words is "fifty-three billion, six hundred thirty-four million, six hundred fifty-one thousand, five hundred twenty-three".