505220536 has 8 divisors (see below), whose sum is σ = 947288520. Its totient is φ = 252610264.

The previous prime is 505220489. The next prime is 505220557. The reversal of 505220536 is 635022505.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×505220536² = 510495579992254592, which contains 22 as substring.

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, 31576276 + ... + 31576291.

It is an arithmetic number, because the mean of its divisors is an integer number (118411065).

Almost surely, 2^505220536 is an apocalyptic number.

It is an amenable number.

505220536 is a deficient number, since it is larger than the sum of its proper divisors (442067984).

505220536 is a wasteful number, since it uses less digits than its factorization.

505220536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63152573 (or 63152569 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 505220536 is about 22477.1113802464. Note that the first 3 decimals coincide. The cubic root of 505220536 is about 796.4533288070.

The spelling of 505220536 in words is "five hundred five million, two hundred twenty thousand, five hundred thirty-six".