52143541507 has 4 divisors (see below), whose sum is σ = 52156089216. Its totient is φ = 52130993800.

The previous prime is 52143541493. The next prime is 52143541531. The reversal of 52143541507 is 70514534125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52143541507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52143511507) 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, 6267619 + ... + 6275932.

It is an arithmetic number, because the mean of its divisors is an integer number (13039022304).

Almost surely, 2^52143541507 is an apocalyptic number.

52143541507 is a deficient number, since it is larger than the sum of its proper divisors (12547709).

52143541507 is a wasteful number, since it uses less digits than its factorization.

52143541507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12547708.

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 52143541507 in words is "fifty-two billion, one hundred forty-three million, five hundred forty-one thousand, five hundred seven".