65219895 has 24 divisors (see below), whose sum is σ = 121744896. Its totient is φ = 32107968.

The previous prime is 65219893. The next prime is 65219899. The reversal of 65219895 is 59891256.

It is not a de Polignac number, because 65219895 - 2¹ = 65219893 is a prime.

It is a super-2 number, since 2×65219895² = 8507269407622050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 65219895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65219893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55159 + ... + 56328.

It is an arithmetic number, because the mean of its divisors is an integer number (5072704).

Almost surely, 2^65219895 is an apocalyptic number.

65219895 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65219895 is a deficient number, since it is larger than the sum of its proper divisors (56525001).

65219895 is a wasteful number, since it uses less digits than its factorization.

65219895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111511 (or 111508 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 65219895 is about 8075.8835429939. The cubic root of 65219895 is about 402.5254693707.

The spelling of 65219895 in words is "sixty-five million, two hundred nineteen thousand, eight hundred ninety-five".