52530644491 has 8 divisors (see below), whose sum is σ = 57131578224. Its totient is φ = 48009727200.

The previous prime is 52530644483. The next prime is 52530644503. The reversal of 52530644491 is 19444603525.

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

It is a cyclic number.

It is not a de Polignac number, because 52530644491 - 2³ = 52530644483 is a prime.

It is a super-2 number, since 2×52530644491² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52530644791) 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, 20002741 + ... + 20005366.

It is an arithmetic number, because the mean of its divisors is an integer number (7141447278).

Almost surely, 2^52530644491 is an apocalyptic number.

52530644491 is a deficient number, since it is larger than the sum of its proper divisors (4600933733).

52530644491 is a wasteful number, since it uses less digits than its factorization.

52530644491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40008221.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 52530644491 in words is "fifty-two billion, five hundred thirty million, six hundred forty-four thousand, four hundred ninety-one".