51000140515 has 8 divisors (see below), whose sum is σ = 63310519440. Its totient is φ = 39393211872.

The previous prime is 51000140483. The next prime is 51000140519. The reversal of 51000140515 is 51504100015.

It is a happy number.

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 51000140515 - 2⁵ = 51000140483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51000140519) 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, 175862409 + ... + 175862698.

It is an arithmetic number, because the mean of its divisors is an integer number (7913814930).

Almost surely, 2^51000140515 is an apocalyptic number.

51000140515 is a deficient number, since it is larger than the sum of its proper divisors (12310378925).

51000140515 is a wasteful number, since it uses less digits than its factorization.

51000140515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351725141.

The product of its (nonzero) digits is 500, while the sum is 22.

The spelling of 51000140515 in words is "fifty-one billion, one hundred forty thousand, five hundred fifteen".