52523120521 has 8 divisors (see below), whose sum is σ = 52967275200. Its totient is φ = 52080768432.

The previous prime is 52523120483. The next prime is 52523120537. The reversal of 52523120521 is 12502132525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52523120521 is a prime.

It is a super-2 number, since 2×52523120521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52523120521.

It is not an unprimeable number, because it can be changed into a prime (52523120621) 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, 392095 + ... + 508708.

It is an arithmetic number, because the mean of its divisors is an integer number (6620909400).

Almost surely, 2^52523120521 is an apocalyptic number.

It is an amenable number.

52523120521 is a deficient number, since it is larger than the sum of its proper divisors (444154679).

52523120521 is a wasteful number, since it uses less digits than its factorization.

52523120521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901295.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 52523120521 in words is "fifty-two billion, five hundred twenty-three million, one hundred twenty thousand, five hundred twenty-one".