52145240163 has 4 divisors (see below), whose sum is σ = 69526986888. Its totient is φ = 34763493440.

The previous prime is 52145240153. The next prime is 52145240177. The reversal of 52145240163 is 36104254125.

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 52145240163 - 2¹² = 52145236067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52145240123) 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, 8690873358 + ... + 8690873363.

It is an arithmetic number, because the mean of its divisors is an integer number (17381746722).

Almost surely, 2^52145240163 is an apocalyptic number.

52145240163 is a deficient number, since it is larger than the sum of its proper divisors (17381746725).

52145240163 is a wasteful number, since it uses less digits than its factorization.

52145240163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17381746724.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 52145240163 its reverse (36104254125), we get a palindrome (88249494288).

The spelling of 52145240163 in words is "fifty-two billion, one hundred forty-five million, two hundred forty thousand, one hundred sixty-three".