506565650 has 24 divisors (see below), whose sum is σ = 991804080. Its totient is φ = 191961360.

The previous prime is 506565629. The next prime is 506565659. The reversal of 506565650 is 56565605.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (506565659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265664 + ... + 267563.

It is an arithmetic number, because the mean of its divisors is an integer number (41325170).

Almost surely, 2^506565650 is an apocalyptic number.

506565650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

506565650 is a deficient number, since it is larger than the sum of its proper divisors (485238430).

506565650 is a wasteful number, since it uses less digits than its factorization.

506565650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533258 (or 533253 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 506565650 is about 22507.0133513978. The cubic root of 506565650 is about 797.1595360167.

The spelling of 506565650 in words is "five hundred six million, five hundred sixty-five thousand, six hundred fifty".