53947959289 has 9 divisors (see below), whose sum is σ = 62757680751. Its totient is φ = 46239714360.

The previous prime is 53947959271. The next prime is 53947959337. The reversal of 53947959289 is 98295974935.

The square root of 53947959289 is 232267.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 23567469289 + 30380490000 = 153517^2 + 174300^2 .

It is not a de Polignac number, because 53947959289 - 2⁵ = 53947959257 is a prime.

It is a super-2 number, since 2×53947959289² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53947959209) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1609279 + ... + 1642459.

It is an arithmetic number, because the mean of its divisors is an integer number (6973075639).

Almost surely, 2^53947959289 is an apocalyptic number.

53947959289 is the 232267-th square number.

53947959289 is the 116134-th centered octagonal number.

It is an amenable number.

53947959289 is a deficient number, since it is larger than the sum of its proper divisors (8809721462).

53947959289 is an frugal number, since it uses more digits than its factorization.

53947959289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66376 (or 33188 counting only the distinct ones).

The product of its digits is 220449600, while the sum is 70.

The spelling of 53947959289 in words is "fifty-three billion, nine hundred forty-seven million, nine hundred fifty-nine thousand, two hundred eighty-nine".