505388151 has 12 divisors (see below), whose sum is σ = 730615080. Its totient is φ = 336643920.

The previous prime is 505388137. The next prime is 505388167. The reversal of 505388151 is 151883505.

It is not a de Polignac number, because 505388151 - 2⁵ = 505388119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505388251) 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 11 ways as a sum of consecutive naturals, for example, 11785 + ... + 33906.

It is an arithmetic number, because the mean of its divisors is an integer number (60884590).

Almost surely, 2^505388151 is an apocalyptic number.

505388151 is a deficient number, since it is larger than the sum of its proper divisors (225226929).

505388151 is a wasteful number, since it uses less digits than its factorization.

505388151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46926 (or 46923 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The square root of 505388151 is about 22480.8396417927. The cubic root of 505388151 is about 796.5413977819.

The spelling of 505388151 in words is "five hundred five million, three hundred eighty-eight thousand, one hundred fifty-one".