65211275 has 12 divisors (see below), whose sum is σ = 80984400. Its totient is φ = 52090080.

The previous prime is 65211271. The next prime is 65211281. The reversal of 65211275 is 57211256.

It is not a de Polignac number, because 65211275 - 2² = 65211271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65211271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19421 + ... + 22529.

It is an arithmetic number, because the mean of its divisors is an integer number (6748700).

Almost surely, 2^65211275 is an apocalyptic number.

65211275 is a deficient number, since it is larger than the sum of its proper divisors (15773125).

65211275 is a wasteful number, since it uses less digits than its factorization.

65211275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958 (or 3953 counting only the distinct ones).

The product of its digits is 4200, while the sum is 29.

The square root of 65211275 is about 8075.3498376231. The cubic root of 65211275 is about 402.5077348924.

The spelling of 65211275 in words is "sixty-five million, two hundred eleven thousand, two hundred seventy-five".