505035331 has 4 divisors (see below), whose sum is σ = 505178352. Its totient is φ = 504892312.

The previous prime is 505035317. The next prime is 505035379. The reversal of 505035331 is 133530505.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505035331 - 2⁵ = 505035299 is a prime.

It is a super-2 number, since 2×505035331² = 510121371116559122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505035296 and 505035305.

It is not an unprimeable number, because it can be changed into a prime (505035131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66076 + ... + 73321.

It is an arithmetic number, because the mean of its divisors is an integer number (126294588).

Almost surely, 2^505035331 is an apocalyptic number.

505035331 is a deficient number, since it is larger than the sum of its proper divisors (143021).

505035331 is a wasteful number, since it uses less digits than its factorization.

505035331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143020.

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 505035331 is about 22472.9911449277. The cubic root of 505035331 is about 796.3559949653.

Adding to 505035331 its reverse (133530505), we get a palindrome (638565836).

The spelling of 505035331 in words is "five hundred five million, thirty-five thousand, three hundred thirty-one".