52091646320540 has 24 divisors (see below), whose sum is σ = 110621586010320. Its totient is φ = 20602538768768.

The previous prime is 52091646320537. The next prime is 52091646320587. The reversal of 52091646320540 is 4502364619025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14632483142 + ... + 14632486701.

It is an arithmetic number, because the mean of its divisors is an integer number (4609232750430).

Almost surely, 2^{52091646320540} is an apocalyptic number.

It is an amenable number.

52091646320540 is an abundant number, since it is smaller than the sum of its proper divisors (58529939689780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52091646320540 is a wasteful number, since it uses less digits than its factorization.

52091646320540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29264969941 (or 29264969939 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 52091646320540 in words is "fifty-two trillion, ninety-one billion, six hundred forty-six million, three hundred twenty thousand, five hundred forty".