52639602085 has 24 divisors (see below), whose sum is σ = 72442817280. Its totient is φ = 35970480192.

The previous prime is 52639602023. The next prime is 52639602091. The reversal of 52639602085 is 58020693625.

It is not a de Polignac number, because 52639602085 - 2¹³ = 52639593893 is a prime.

It is a super-4 number, since 4×52639602085⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2995956 + ... + 3013474.

It is an arithmetic number, because the mean of its divisors is an integer number (3018450720).

Almost surely, 2^52639602085 is an apocalyptic number.

It is an amenable number.

52639602085 is a deficient number, since it is larger than the sum of its proper divisors (19803215195).

52639602085 is an equidigital number, since it uses as much as digits as its factorization.

52639602085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18117 (or 17824 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 52639602085 in words is "fifty-two billion, six hundred thirty-nine million, six hundred two thousand, eighty-five".