505616212 has 6 divisors (see below), whose sum is σ = 884828378. Its totient is φ = 252808104.

The previous prime is 505616191. The next prime is 505616263. The reversal of 505616212 is 212616505.

It can be written as a sum of positive squares in only one way, i.e., 354719556 + 150896656 = 18834^2 + 12284^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63202023 + ... + 63202030.

Almost surely, 2^505616212 is an apocalyptic number.

It is an amenable number.

505616212 is a deficient number, since it is larger than the sum of its proper divisors (379212166).

505616212 is a wasteful number, since it uses less digits than its factorization.

505616212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126404057 (or 126404055 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 505616212 is about 22485.9114113705. The cubic root of 505616212 is about 796.6611952807.

The spelling of 505616212 in words is "five hundred five million, six hundred sixteen thousand, two hundred twelve".