53552721841 has 4 divisors (see below), whose sum is σ = 53698642432. Its totient is φ = 53406801252.

The previous prime is 53552721839. The next prime is 53552721881. The reversal of 53552721841 is 14812725535.

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 53552721841 - 2¹ = 53552721839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53552721821) 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, 72959745 + ... + 72960478.

It is an arithmetic number, because the mean of its divisors is an integer number (13424660608).

Almost surely, 2^53552721841 is an apocalyptic number.

It is an amenable number.

53552721841 is a deficient number, since it is larger than the sum of its proper divisors (145920591).

53552721841 is a wasteful number, since it uses less digits than its factorization.

53552721841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145920590.

The product of its digits is 336000, while the sum is 43.

The spelling of 53552721841 in words is "fifty-three billion, five hundred fifty-two million, seven hundred twenty-one thousand, eight hundred forty-one".