265616530 has 16 divisors (see below), whose sum is σ = 478592064. Its totient is φ = 106139440.

The previous prime is 265616501. The next prime is 265616531. The reversal of 265616530 is 35616562.

It is not an unprimeable number, because it can be changed into a prime (265616531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2572 + ... + 23191.

It is an arithmetic number, because the mean of its divisors is an integer number (29912004).

Almost surely, 2^265616530 is an apocalyptic number.

265616530 is a deficient number, since it is larger than the sum of its proper divisors (212975534).

265616530 is a wasteful number, since it uses less digits than its factorization.

265616530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26801.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 265616530 is about 16297.7461631969. The cubic root of 265616530 is about 642.8135650413.

The spelling of 265616530 in words is "two hundred sixty-five million, six hundred sixteen thousand, five hundred thirty".