65225894571 has 8 divisors (see below), whose sum is σ = 96630954960. Its totient is φ = 43483929696.

The previous prime is 65225894563. The next prime is 65225894609. The reversal of 65225894571 is 17549852256.

65225894571 is a `hidden beast` number, since 6 + 5 + 2 + 2 + 589 + 4 + 57 + 1 = 666.

It is not a de Polignac number, because 65225894571 - 2³ = 65225894563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65225894521) 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, 1207886910 + ... + 1207886963.

It is an arithmetic number, because the mean of its divisors is an integer number (12078869370).

Almost surely, 2^65225894571 is an apocalyptic number.

65225894571 is a deficient number, since it is larger than the sum of its proper divisors (31405060389).

65225894571 is a wasteful number, since it uses less digits than its factorization.

65225894571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415773882 (or 2415773876 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 54.

The spelling of 65225894571 in words is "sixty-five billion, two hundred twenty-five million, eight hundred ninety-four thousand, five hundred seventy-one".