51011000650 has 24 divisors (see below), whose sum is σ = 97941124224. Its totient is φ = 19746193200.

The previous prime is 51011000647. The next prime is 51011000669. The reversal of 51011000650 is 5600011015.

51011000650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16453612 + ... + 16456711.

It is an arithmetic number, because the mean of its divisors is an integer number (4080880176).

Almost surely, 2^51011000650 is an apocalyptic number.

51011000650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51011000650 is a deficient number, since it is larger than the sum of its proper divisors (46930123574).

51011000650 is a wasteful number, since it uses less digits than its factorization.

51011000650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32910366 (or 32910361 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 51011000650 its reverse (5600011015), we get a palindrome (56611011665).

The spelling of 51011000650 in words is "fifty-one billion, eleven million, six hundred fifty", and thus it is an aban number.