52571920461919 has 4 divisors (see below), whose sum is σ = 53992783177144. Its totient is φ = 51151057746696.

The previous prime is 52571920461871. The next prime is 52571920461923. The reversal of 52571920461919 is 91916402917525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52571920461919 - 2⁹ = 52571920461407 is a prime.

It is a super-2 number, since 2×52571920461919² (a number of 28 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 (52571920461989) 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, 710431357557 + ... + 710431357630.

It is an arithmetic number, because the mean of its divisors is an integer number (13498195794286).

Almost surely, 2^{52571920461919} is an apocalyptic number.

52571920461919 is a deficient number, since it is larger than the sum of its proper divisors (1420862715225).

52571920461919 is a wasteful number, since it uses less digits than its factorization.

52571920461919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420862715224.

The product of its (nonzero) digits is 12247200, while the sum is 61.

The spelling of 52571920461919 in words is "fifty-two trillion, five hundred seventy-one billion, nine hundred twenty million, four hundred sixty-one thousand, nine hundred nineteen".