65225052257 has 8 divisors (see below), whose sum is σ = 67492742400. Its totient is φ = 62958598864.

The previous prime is 65225052247. The next prime is 65225052259. The reversal of 65225052257 is 75225052256.

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 65225052257 - 2⁸ = 65225052001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65225052259) 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, 201233 + ... + 413454.

It is an arithmetic number, because the mean of its divisors is an integer number (8436592800).

Almost surely, 2^65225052257 is an apocalyptic number.

It is an amenable number.

65225052257 is a deficient number, since it is larger than the sum of its proper divisors (2267690143).

65225052257 is a wasteful number, since it uses less digits than its factorization.

65225052257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618375.

The product of its (nonzero) digits is 420000, while the sum is 41.

Subtracting 65225052257 from its reverse (75225052256), we obtain a palindrome (9999999999).

The spelling of 65225052257 in words is "sixty-five billion, two hundred twenty-five million, fifty-two thousand, two hundred fifty-seven".