65225131 has 4 divisors (see below), whose sum is σ = 65433832. Its totient is φ = 65016432.

The previous prime is 65225129. The next prime is 65225159. The reversal of 65225131 is 13152256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65225131 - 2¹ = 65225129 is a prime.

It is a super-2 number, since 2×65225131² = 8508635427934322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65225096 and 65225105.

It is not an unprimeable number, because it can be changed into a prime (65225161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103881 + ... + 104506.

It is an arithmetic number, because the mean of its divisors is an integer number (16358458).

Almost surely, 2^65225131 is an apocalyptic number.

65225131 is a deficient number, since it is larger than the sum of its proper divisors (208701).

65225131 is a wasteful number, since it uses less digits than its factorization.

65225131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208700.

The product of its digits is 1800, while the sum is 25.

The square root of 65225131 is about 8076.2077115438. The cubic root of 65225131 is about 402.5362409660.

Adding to 65225131 its reverse (13152256), we get a palindrome (78377387).

It can be divided in two parts, 65225 and 131, that added together give a palindrome (65356).

The spelling of 65225131 in words is "sixty-five million, two hundred twenty-five thousand, one hundred thirty-one".