51000555050 has 24 divisors (see below), whose sum is σ = 100441094796. Its totient is φ = 19200208640.

The previous prime is 51000555037. The next prime is 51000555121. The reversal of 51000555050 is 5055500015.

It can be written as a sum of positive squares in 6 ways, for example, as 35558267761 + 15442287289 = 188569^2 + 124267^2 .

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, 29999477 + ... + 30001176.

Almost surely, 2^51000555050 is an apocalyptic number.

51000555050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51000555050 is a deficient number, since it is larger than the sum of its proper divisors (49440539746).

51000555050 is a wasteful number, since it uses less digits than its factorization.

51000555050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60000682 (or 60000677 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 26.

The spelling of 51000555050 in words is "fifty-one billion, five hundred fifty-five thousand, fifty".