53098998642721 has 4 divisors (see below), whose sum is σ = 53100689886612. Its totient is φ = 53097307398832.

The previous prime is 53098998642623. The next prime is 53098998642733. The reversal of 53098998642721 is 12724689989035.

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 19907123827600 + 33191874815121 = 4461740^2 + 5761239^2 .

It is a cyclic number.

It is not a de Polignac number, because 53098998642721 - 2¹⁹ = 53098998118433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53098998642761) 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, 845574850 + ... + 845637643.

It is an arithmetic number, because the mean of its divisors is an integer number (13275172471653).

It is a 1-persistent number, because it is pandigital, but 2⋅53098998642721 = 106197997285442 is not.

Almost surely, 2^{53098998642721} is an apocalyptic number.

It is an amenable number.

53098998642721 is a deficient number, since it is larger than the sum of its proper divisors (1691243891).

53098998642721 is a wasteful number, since it uses less digits than its factorization.

53098998642721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691243890.

The product of its (nonzero) digits is 470292480, while the sum is 73.

The spelling of 53098998642721 in words is "fifty-three trillion, ninety-eight billion, nine hundred ninety-eight million, six hundred forty-two thousand, seven hundred twenty-one".