52481487291 has 4 divisors (see below), whose sum is σ = 69975316392. Its totient is φ = 34987658192.

The previous prime is 52481487277. The next prime is 52481487313. The reversal of 52481487291 is 19278418425.

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 52481487291 - 2¹⁷ = 52481356219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52481487251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8746914546 + ... + 8746914551.

It is an arithmetic number, because the mean of its divisors is an integer number (17493829098).

Almost surely, 2^52481487291 is an apocalyptic number.

52481487291 is a deficient number, since it is larger than the sum of its proper divisors (17493829101).

52481487291 is a wasteful number, since it uses less digits than its factorization.

52481487291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17493829100.

The product of its digits is 1290240, while the sum is 51.

The spelling of 52481487291 in words is "fifty-two billion, four hundred eighty-one million, four hundred eighty-seven thousand, two hundred ninety-one".