51435532105 has 8 divisors (see below), whose sum is σ = 61741773000. Its totient is φ = 41135669376.

The previous prime is 51435532087. The next prime is 51435532117. The reversal of 51435532105 is 50123553415.

It can be written as a sum of positive squares in 4 ways, for example, as 10729645056 + 40705887049 = 103584^2 + 201757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51435532105 - 2⁷ = 51435531977 is a prime.

It is a super-2 number, since 2×51435532105² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576780 + ... + 1609069.

It is an arithmetic number, because the mean of its divisors is an integer number (7717721625).

Almost surely, 2^51435532105 is an apocalyptic number.

It is an amenable number.

51435532105 is a deficient number, since it is larger than the sum of its proper divisors (10306240895).

51435532105 is a wasteful number, since it uses less digits than its factorization.

51435532105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189083.

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

The spelling of 51435532105 in words is "fifty-one billion, four hundred thirty-five million, five hundred thirty-two thousand, one hundred five".