51538528411 has 4 divisors (see below), whose sum is σ = 51931952424. Its totient is φ = 51145104400.

The previous prime is 51538528403. The next prime is 51538528469. The reversal of 51538528411 is 11482583515.

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 51538528411 - 2³ = 51538528403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51538528211) 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, 196711810 + ... + 196712071.

It is an arithmetic number, because the mean of its divisors is an integer number (12982988106).

Almost surely, 2^51538528411 is an apocalyptic number.

51538528411 is a deficient number, since it is larger than the sum of its proper divisors (393424013).

51538528411 is a wasteful number, since it uses less digits than its factorization.

51538528411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393424012.

The product of its digits is 192000, while the sum is 43.

The spelling of 51538528411 in words is "fifty-one billion, five hundred thirty-eight million, five hundred twenty-eight thousand, four hundred eleven".