52069291261 has 4 divisors (see below), whose sum is σ = 56074621372. Its totient is φ = 48063961152.

The previous prime is 52069291259. The next prime is 52069291271. The reversal of 52069291261 is 16219296025.

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 7971811225 + 44097480036 = 89285^2 + 209994^2 .

It is a cyclic number.

It is not a de Polignac number, because 52069291261 - 2¹ = 52069291259 is a prime.

It is a super-2 number, since 2×52069291261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52069291201) 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, 2002665036 + ... + 2002665061.

It is an arithmetic number, because the mean of its divisors is an integer number (14018655343).

Almost surely, 2^52069291261 is an apocalyptic number.

It is an amenable number.

52069291261 is a deficient number, since it is larger than the sum of its proper divisors (4005330111).

52069291261 is a wasteful number, since it uses less digits than its factorization.

52069291261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005330110.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 52069291261 in words is "fifty-two billion, sixty-nine million, two hundred ninety-one thousand, two hundred sixty-one".