505216415 has 8 divisors (see below), whose sum is σ = 661374288. Its totient is φ = 367430080.

The previous prime is 505216379. The next prime is 505216427. The reversal of 505216415 is 514612505.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505216415 - 2¹⁰ = 505215391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4592822 + ... + 4592931.

It is an arithmetic number, because the mean of its divisors is an integer number (82671786).

Almost surely, 2^505216415 is an apocalyptic number.

505216415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

505216415 is a deficient number, since it is larger than the sum of its proper divisors (156157873).

505216415 is a wasteful number, since it uses less digits than its factorization.

505216415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9185769.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 505216415 is about 22477.0197090273. The cubic root of 505216415 is about 796.4511632886.

The spelling of 505216415 in words is "five hundred five million, two hundred sixteen thousand, four hundred fifteen".