505620356 has 6 divisors (see below), whose sum is σ = 884835630. Its totient is φ = 252810176.

The previous prime is 505620347. The next prime is 505620361. The reversal of 505620356 is 653026505.

It can be written as a sum of positive squares in only one way, i.e., 500237956 + 5382400 = 22366^2 + 2320^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63202541 + ... + 63202548.

It is an arithmetic number, because the mean of its divisors is an integer number (147472605).

Almost surely, 2^505620356 is an apocalyptic number.

It is an amenable number.

505620356 is a deficient number, since it is larger than the sum of its proper divisors (379215274).

505620356 is a wasteful number, since it uses less digits than its factorization.

505620356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126405093 (or 126405091 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 505620356 is about 22486.0035577690. The cubic root of 505620356 is about 796.6633717372.

The spelling of 505620356 in words is "five hundred five million, six hundred twenty thousand, three hundred fifty-six".