505161072 has 60 divisors (see below), whose sum is σ = 1522504984. Its totient is φ = 155433600.

The previous prime is 505161053. The next prime is 505161077. The reversal of 505161072 is 270161505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505161077) 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 11 ways as a sum of consecutive naturals, for example, 133054 + ... + 136797.

Almost surely, 2^505161072 is an apocalyptic number.

505161072 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

505161072 is an abundant number, since it is smaller than the sum of its proper divisors (1017343912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505161072 is a wasteful number, since it uses less digits than its factorization.

505161072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269878 (or 269869 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 505161072 is about 22475.7885734850. The cubic root of 505161072 is about 796.4220803022.

The spelling of 505161072 in words is "five hundred five million, one hundred sixty-one thousand, seventy-two".