52259215729 has 16 divisors (see below), whose sum is σ = 61006233600. Its totient is φ = 43832885904.

The previous prime is 52259215727. The next prime is 52259215739. The reversal of 52259215729 is 92751295225.

It is a cyclic number.

It is not a de Polignac number, because 52259215729 - 2¹ = 52259215727 is a prime.

It is a super-2 number, since 2×52259215729² (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 (52259215727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2634952 + ... + 2654710.

It is an arithmetic number, because the mean of its divisors is an integer number (3812889600).

Almost surely, 2^52259215729 is an apocalyptic number.

It is an amenable number.

52259215729 is a deficient number, since it is larger than the sum of its proper divisors (8747017871).

52259215729 is a wasteful number, since it uses less digits than its factorization.

52259215729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27852.

The product of its digits is 1134000, while the sum is 49.

The spelling of 52259215729 in words is "fifty-two billion, two hundred fifty-nine million, two hundred fifteen thousand, seven hundred twenty-nine".