51005000506 has 8 divisors (see below), whose sum is σ = 77804238240. Its totient is φ = 25070254428.

The previous prime is 51005000461. The next prime is 51005000531. The reversal of 51005000506 is 60500050015.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216122766 + ... + 216123001.

It is an arithmetic number, because the mean of its divisors is an integer number (9725529780).

Almost surely, 2^51005000506 is an apocalyptic number.

51005000506 is a deficient number, since it is larger than the sum of its proper divisors (26799237734).

51005000506 is a wasteful number, since it uses less digits than its factorization.

51005000506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432245828.

The product of its (nonzero) digits is 750, while the sum is 22.

The spelling of 51005000506 in words is "fifty-one billion, five million, five hundred six", and thus it is an aban number.