65225031 has 32 divisors (see below), whose sum is σ = 93139200. Its totient is φ = 40535040.

The previous prime is 65225029. The next prime is 65225051. The reversal of 65225031 is 13052256.

65225031 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 65225031 - 2¹ = 65225029 is a prime.

It is a super-2 number, since 2×65225031² = 8508609337901922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65224992 and 65225010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65225021) 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 31 ways as a sum of consecutive naturals, for example, 497836 + ... + 497966.

It is an arithmetic number, because the mean of its divisors is an integer number (2910600).

Almost surely, 2^65225031 is an apocalyptic number.

65225031 is a deficient number, since it is larger than the sum of its proper divisors (27914169).

65225031 is a wasteful number, since it uses less digits than its factorization.

65225031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 65225031 is about 8076.2015205169. The cubic root of 65225031 is about 402.5360352496.

Adding to 65225031 its reverse (13052256), we get a palindrome (78277287).

The spelling of 65225031 in words is "sixty-five million, two hundred twenty-five thousand, thirty-one".