65315532 has 24 divisors (see below), whose sum is σ = 153976816. Its totient is φ = 21547008.

The previous prime is 65315531. The next prime is 65315533. The reversal of 65315532 is 23551356.

65315532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (65315531) and next prime (65315533).

It is a super-2 number, since 2×65315532² = 8532237440886048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65315532.

It is not an unprimeable number, because it can be changed into a prime (65315531) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 26893 + ... + 29220.

Almost surely, 2^65315532 is an apocalyptic number.

It is an amenable number.

65315532 is an abundant number, since it is smaller than the sum of its proper divisors (88661284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65315532 is a wasteful number, since it uses less digits than its factorization.

65315532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56217 (or 56215 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 65315532 is about 8081.8025217151. The cubic root of 65315532 is about 402.7221247364.

Adding to 65315532 its reverse (23551356), we get a palindrome (88866888).

The spelling of 65315532 in words is "sixty-five million, three hundred fifteen thousand, five hundred thirty-two".