53042353254661 has 4 divisors (see below), whose sum is σ = 53044796160972. Its totient is φ = 53039910348352.

The previous prime is 53042353254659. The next prime is 53042353254673. The reversal of 53042353254661 is 16645235324035.

53042353254661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32289317452161 + 20753035802500 = 5682369^2 + 4555550^2 .

It is a cyclic number.

It is not a de Polignac number, because 53042353254661 - 2¹ = 53042353254659 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 (53042353254641) 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, 1221420586 + ... + 1221464011.

It is an arithmetic number, because the mean of its divisors is an integer number (13261199040243).

Almost surely, 2^{53042353254661} is an apocalyptic number.

It is an amenable number.

53042353254661 is a deficient number, since it is larger than the sum of its proper divisors (2442906311).

53042353254661 is a wasteful number, since it uses less digits than its factorization.

53042353254661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442906310.

The product of its (nonzero) digits is 7776000, while the sum is 49.

Adding to 53042353254661 its reverse (16645235324035), we get a palindrome (69687588578696).

The spelling of 53042353254661 in words is "fifty-three trillion, forty-two billion, three hundred fifty-three million, two hundred fifty-four thousand, six hundred sixty-one".