52534575845781 has 8 divisors (see below), whose sum is σ = 71233323180960. Its totient is φ = 34429439537232.

The previous prime is 52534575845743. The next prime is 52534575845797. The reversal of 52534575845781 is 18754857543525.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52534575845781 - 2¹⁴ = 52534575829397 is a prime.

It is a super-2 number, since 2×52534575845781² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52534575845701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148402756450 + ... + 148402756803.

It is an arithmetic number, because the mean of its divisors is an integer number (8904165397620).

Almost surely, 2^{52534575845781} is an apocalyptic number.

It is an amenable number.

52534575845781 is a deficient number, since it is larger than the sum of its proper divisors (18698747335179).

52534575845781 is a wasteful number, since it uses less digits than its factorization.

52534575845781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296805513315.

The product of its digits is 940800000, while the sum is 69.

The spelling of 52534575845781 in words is "fifty-two trillion, five hundred thirty-four billion, five hundred seventy-five million, eight hundred forty-five thousand, seven hundred eighty-one".