505670255 has 4 divisors (see below), whose sum is σ = 606804312. Its totient is φ = 404536200.

The previous prime is 505670251. The next prime is 505670267. The reversal of 505670255 is 552076505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552076505 = 5 ⋅110415301.

It is not a de Polignac number, because 505670255 - 2² = 505670251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505670251) 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, 50567021 + ... + 50567030.

It is an arithmetic number, because the mean of its divisors is an integer number (151701078).

Almost surely, 2^505670255 is an apocalyptic number.

505670255 is a deficient number, since it is larger than the sum of its proper divisors (101134057).

505670255 is a wasteful number, since it uses less digits than its factorization.

505670255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101134056.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 505670255 is about 22487.1130872773. The cubic root of 505670255 is about 796.6895780911.

The spelling of 505670255 in words is "five hundred five million, six hundred seventy thousand, two hundred fifty-five".