51513763 has 8 divisors (see below), whose sum is σ = 59084640. Its totient is φ = 43995840.

The previous prime is 51513743. The next prime is 51513793. The reversal of 51513763 is 36731515.

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

It is a de Polignac number, because none of the positive numbers 2^k-51513763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51513703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11128 + ... + 15061.

It is an arithmetic number, because the mean of its divisors is an integer number (7385580).

Almost surely, 2^51513763 is an apocalyptic number.

51513763 is a deficient number, since it is larger than the sum of its proper divisors (7570877).

51513763 is a wasteful number, since it uses less digits than its factorization.

51513763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26477.

The product of its digits is 9450, while the sum is 31.

The square root of 51513763 is about 7177.3088967941. The cubic root of 51513763 is about 372.0840827200.

The spelling of 51513763 in words is "fifty-one million, five hundred thirteen thousand, seven hundred sixty-three".