65212464525 has 96 divisors (see below), whose sum is σ = 129412967040. Its totient is φ = 28625633280.

The previous prime is 65212464523. The next prime is 65212464529. The reversal of 65212464525 is 52546421256.

It is a happy number.

It is not a de Polignac number, because 65212464525 - 2¹ = 65212464523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65212464523) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 211389 + ... + 418461.

It is an arithmetic number, because the mean of its divisors is an integer number (1348051740).

Almost surely, 2^65212464525 is an apocalyptic number.

65212464525 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65212464525 is a deficient number, since it is larger than the sum of its proper divisors (64200502515).

65212464525 is a wasteful number, since it uses less digits than its factorization.

65212464525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207135 (or 207130 counting only the distinct ones).

The product of its digits is 576000, while the sum is 42.

The spelling of 65212464525 in words is "sixty-five billion, two hundred twelve million, four hundred sixty-four thousand, five hundred twenty-five".