53755742661 has 4 divisors (see below), whose sum is σ = 71674323552. Its totient is φ = 35837161772.

The previous prime is 53755742641. The next prime is 53755742771. The reversal of 53755742661 is 16624755735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53755742661 - 2⁵ = 53755742629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53755742641) 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, 8959290441 + ... + 8959290446.

It is an arithmetic number, because the mean of its divisors is an integer number (17918580888).

Almost surely, 2^53755742661 is an apocalyptic number.

It is an amenable number.

53755742661 is a deficient number, since it is larger than the sum of its proper divisors (17918580891).

53755742661 is a wasteful number, since it uses less digits than its factorization.

53755742661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17918580890.

The product of its digits is 5292000, while the sum is 51.

The spelling of 53755742661 in words is "fifty-three billion, seven hundred fifty-five million, seven hundred forty-two thousand, six hundred sixty-one".