52101161155261 has 8 divisors (see below), whose sum is σ = 52371338970104. Its totient is φ = 51830985646080.

The previous prime is 52101161155259. The next prime is 52101161155273. The reversal of 52101161155261 is 16255116110125.

It can be written as a sum of positive squares in 4 ways, for example, as 2370386635236 + 49730774520025 = 1539606^2 + 7052005^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52101161155261 - 2¹ = 52101161155259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52101161155261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52101161150261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62686765 + ... + 63512461.

It is an arithmetic number, because the mean of its divisors is an integer number (6546417371263).

Almost surely, 2^{52101161155261} is an apocalyptic number.

It is an amenable number.

52101161155261 is a deficient number, since it is larger than the sum of its proper divisors (270177814843).

52101161155261 is a wasteful number, since it uses less digits than its factorization.

52101161155261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152831.

The product of its (nonzero) digits is 18000, while the sum is 37.

Adding to 52101161155261 its reverse (16255116110125), we get a palindrome (68356277265386).

The spelling of 52101161155261 in words is "fifty-two trillion, one hundred one billion, one hundred sixty-one million, one hundred fifty-five thousand, two hundred sixty-one".