65249316 has 36 divisors (see below), whose sum is σ = 179931024. Its totient is φ = 19772400.

The previous prime is 65249311. The next prime is 65249341. The reversal of 65249316 is 61394256.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×65249316³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (65249311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81990 + ... + 82781.

It is an arithmetic number, because the mean of its divisors is an integer number (4998084).

Almost surely, 2^65249316 is an apocalyptic number.

65249316 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

65249316 is an abundant number, since it is smaller than the sum of its proper divisors (114681708).

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

65249316 is a wasteful number, since it uses less digits than its factorization.

65249316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164792 (or 164787 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 65249316 is about 8077.7048720537. The cubic root of 65249316 is about 402.5859873129.

The spelling of 65249316 in words is "sixty-five million, two hundred forty-nine thousand, three hundred sixteen".