65225537 has 8 divisors (see below), whose sum is σ = 73940160. Its totient is φ = 57039120.

The previous prime is 65225533. The next prime is 65225543. The reversal of 65225537 is 73552256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65225537 - 2² = 65225533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65225497 and 65225506.

It is not an unprimeable number, because it can be changed into a prime (65225533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131789 + ... + 132282.

It is an arithmetic number, because the mean of its divisors is an integer number (9242520).

Almost surely, 2^65225537 is an apocalyptic number.

It is an amenable number.

65225537 is a deficient number, since it is larger than the sum of its proper divisors (8714623).

65225537 is a wasteful number, since it uses less digits than its factorization.

65225537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264103.

The product of its digits is 63000, while the sum is 35.

The square root of 65225537 is about 8076.2328470643. The cubic root of 65225537 is about 402.5370761726.

The spelling of 65225537 in words is "sixty-five million, two hundred twenty-five thousand, five hundred thirty-seven".