505951011 has 6 divisors (see below), whose sum is σ = 730818140. Its totient is φ = 337300668.

The previous prime is 505951007. The next prime is 505951021. The reversal of 505951011 is 110159505.

505951011 is a `hidden beast` number, since 50 + 595 + 10 + 11 = 666.

It is not a de Polignac number, because 505951011 - 2² = 505951007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505951021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28108381 + ... + 28108398.

Almost surely, 2^505951011 is an apocalyptic number.

505951011 is a deficient number, since it is larger than the sum of its proper divisors (224867129).

505951011 is a wasteful number, since it uses less digits than its factorization.

505951011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56216785 (or 56216782 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 27.

The square root of 505951011 is about 22493.3548187015. The cubic root of 505951011 is about 796.8369956316.

The spelling of 505951011 in words is "five hundred five million, nine hundred fifty-one thousand, eleven".