505423395 has 20 divisors (see below), whose sum is σ = 906018960. Its totient is φ = 269558928.

The previous prime is 505423393. The next prime is 505423403. The reversal of 505423395 is 593324505.

It is not a de Polignac number, because 505423395 - 2¹ = 505423393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505423393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 623575 + ... + 624384.

It is an arithmetic number, because the mean of its divisors is an integer number (45300948).

Almost surely, 2^505423395 is an apocalyptic number.

505423395 is a deficient number, since it is larger than the sum of its proper divisors (400595565).

505423395 is a wasteful number, since it uses less digits than its factorization.

505423395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247976 (or 1247967 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 505423395 is about 22481.6234956464. The cubic root of 505423395 is about 796.5599133541.

The spelling of 505423395 in words is "five hundred five million, four hundred twenty-three thousand, three hundred ninety-five".