51452031535 has 4 divisors (see below), whose sum is σ = 61742437848. Its totient is φ = 41161625224.

The previous prime is 51452031509. The next prime is 51452031557. The reversal of 51452031535 is 53513025415.

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 51452031535 - 2⁵ = 51452031503 is a prime.

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 51452031535.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5145203149 + ... + 5145203158.

It is an arithmetic number, because the mean of its divisors is an integer number (15435609462).

Almost surely, 2^51452031535 is an apocalyptic number.

51452031535 is a deficient number, since it is larger than the sum of its proper divisors (10290406313).

51452031535 is a wasteful number, since it uses less digits than its factorization.

51452031535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10290406312.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 51452031535 in words is "fifty-one billion, four hundred fifty-two million, thirty-one thousand, five hundred thirty-five".