501306065225 has 36 divisors (see below), whose sum is σ = 724227200064. Its totient is φ = 343220885280.

The previous prime is 501306065179. The next prime is 501306065233. The reversal of 501306065225 is 522560603105.

It is not a de Polignac number, because 501306065225 - 2²⁸ = 501037629769 is a prime.

It is a super-3 number, since 3×501306065225³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 476324 + ... + 1108826.

It is an arithmetic number, because the mean of its divisors is an integer number (20117422224).

Almost surely, 2^501306065225 is an apocalyptic number.

It is an amenable number.

501306065225 is a deficient number, since it is larger than the sum of its proper divisors (222921134839).

501306065225 is a wasteful number, since it uses less digits than its factorization.

501306065225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633174 (or 633162 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 501306065225 in words is "five hundred one billion, three hundred six million, sixty-five thousand, two hundred twenty-five".