505965371 has 4 divisors (see below), whose sum is σ = 506020032. Its totient is φ = 505910712.

The previous prime is 505965337. The next prime is 505965377. The reversal of 505965371 is 173569505.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 173569505 = 5 ⋅34713901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505965371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505965377) 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, 9620 + ... + 33233.

It is an arithmetic number, because the mean of its divisors is an integer number (126505008).

Almost surely, 2^505965371 is an apocalyptic number.

505965371 is a deficient number, since it is larger than the sum of its proper divisors (54661).

505965371 is a wasteful number, since it uses less digits than its factorization.

505965371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54660.

The product of its (nonzero) digits is 141750, while the sum is 41.

The square root of 505965371 is about 22493.6740218222. The cubic root of 505965371 is about 796.8445342211.

The spelling of 505965371 in words is "five hundred five million, nine hundred sixty-five thousand, three hundred seventy-one".