505133427 has 16 divisors (see below), whose sum is σ = 729717120. Its totient is φ = 309574272.

The previous prime is 505133423. The next prime is 505133459. The reversal of 505133427 is 724331505.

It is not a de Polignac number, because 505133427 - 2² = 505133423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505133394 and 505133403.

It is not an unprimeable number, because it can be changed into a prime (505133423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112977 + ... + 117362.

It is an arithmetic number, because the mean of its divisors is an integer number (45607320).

Almost surely, 2^505133427 is an apocalyptic number.

505133427 is a deficient number, since it is larger than the sum of its proper divisors (224583693).

505133427 is a wasteful number, since it uses less digits than its factorization.

505133427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230402.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 505133427 is about 22475.1735699638. The cubic root of 505133427 is about 796.4075519394.

The spelling of 505133427 in words is "five hundred five million, one hundred thirty-three thousand, four hundred twenty-seven".