65249331 has 12 divisors (see below), whose sum is σ = 101203272. Its totient is φ = 37285248.

The previous prime is 65249311. The next prime is 65249341. The reversal of 65249331 is 13394256.

65249331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65249331 - 2⁵ = 65249299 is a prime.

It is a super-3 number, since 3×65249331³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 65249292 and 65249301.

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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221790 + ... + 222083.

It is an arithmetic number, because the mean of its divisors is an integer number (8433606).

Almost surely, 2^65249331 is an apocalyptic number.

65249331 is a deficient number, since it is larger than the sum of its proper divisors (35953941).

65249331 is a wasteful number, since it uses less digits than its factorization.

65249331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443890 (or 443883 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 65249331 is about 8077.7058005352. The cubic root of 65249331 is about 402.5860181627.

The spelling of 65249331 in words is "sixty-five million, two hundred forty-nine thousand, three hundred thirty-one".