51513230035 has 4 divisors (see below), whose sum is σ = 61815876048. Its totient is φ = 41210584024.

The previous prime is 51513230023. The next prime is 51513230039. The reversal of 51513230035 is 53003231515.

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 51513230035 - 2²⁵ = 51479675603 is a prime.

It is a super-2 number, since 2×51513230035² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51513229985 and 51513230012.

It is not an unprimeable number, because it can be changed into a prime (51513230039) 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, 5151322999 + ... + 5151323008.

It is an arithmetic number, because the mean of its divisors is an integer number (15453969012).

Almost surely, 2^51513230035 is an apocalyptic number.

51513230035 is a deficient number, since it is larger than the sum of its proper divisors (10302646013).

51513230035 is a wasteful number, since it uses less digits than its factorization.

51513230035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10302646012.

The product of its (nonzero) digits is 6750, while the sum is 28.

The spelling of 51513230035 in words is "fifty-one billion, five hundred thirteen million, two hundred thirty thousand, thirty-five".