65225515 has 8 divisors (see below), whose sum is σ = 82874880. Its totient is φ = 49110912.

The previous prime is 65225513. The next prime is 65225533. The reversal of 65225515 is 51552256.

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 65225515 - 2¹ = 65225513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65225513) 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, 383595 + ... + 383764.

It is an arithmetic number, because the mean of its divisors is an integer number (10359360).

Almost surely, 2^65225515 is an apocalyptic number.

65225515 is a deficient number, since it is larger than the sum of its proper divisors (17649365).

65225515 is a wasteful number, since it uses less digits than its factorization.

65225515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767381.

The product of its digits is 15000, while the sum is 31.

The square root of 65225515 is about 8076.2314850430. The cubic root of 65225515 is about 402.5370309152.

The spelling of 65225515 in words is "sixty-five million, two hundred twenty-five thousand, five hundred fifteen".