505005951 has 8 divisors (see below), whose sum is σ = 674442160. Its totient is φ = 336120192.

The previous prime is 505005937. The next prime is 505005953. The reversal of 505005951 is 159500505.

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

It is not a de Polignac number, because 505005951 - 2⁶ = 505005887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505005953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135466 + ... + 139143.

It is an arithmetic number, because the mean of its divisors is an integer number (84305270).

Almost surely, 2^505005951 is an apocalyptic number.

505005951 is a deficient number, since it is larger than the sum of its proper divisors (169436209).

505005951 is a wasteful number, since it uses less digits than its factorization.

505005951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275225.

The product of its (nonzero) digits is 5625, while the sum is 30.

The square root of 505005951 is about 22472.3374618663. The cubic root of 505005951 is about 796.3405522221.

The spelling of 505005951 in words is "five hundred five million, five thousand, nine hundred fifty-one".