53612621635 has 4 divisors (see below), whose sum is σ = 64335145968. Its totient is φ = 42890097304.

The previous prime is 53612621633. The next prime is 53612621663.

53612621635 is nontrivially palindromic in base 10.

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 53612621635 - 2¹ = 53612621633 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53612621633) 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, 5361262159 + ... + 5361262168.

It is an arithmetic number, because the mean of its divisors is an integer number (16083786492).

Almost surely, 2^53612621635 is an apocalyptic number.

53612621635 is a deficient number, since it is larger than the sum of its proper divisors (10722524333).

53612621635 is a wasteful number, since it uses less digits than its factorization.

53612621635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10722524332.

The product of its digits is 194400, while the sum is 40.

The spelling of 53612621635 in words is "fifty-three billion, six hundred twelve million, six hundred twenty-one thousand, six hundred thirty-five".