501272803125 has 60 divisors (see below), whose sum is σ = 935959227588. Its totient is φ = 267345360000.

The previous prime is 501272803111. The next prime is 501272803133. The reversal of 501272803125 is 521308272105.

501272803125 is a `hidden beast` number, since 50 + 12 + 7 + 280 + 312 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 495245765169 + 6027037956 = 703737^2 + 77634^2 .

It is not a de Polignac number, because 501272803125 - 2⁶ = 501272803061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 501272803125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 737044 + ... + 1243293.

Almost surely, 2^501272803125 is an apocalyptic number.

It is an amenable number.

501272803125 is a deficient number, since it is larger than the sum of its proper divisors (434686424463).

501272803125 is an frugal number, since it uses more digits than its factorization.

501272803125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980374 (or 1980345 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 501272803125 in words is "five hundred one billion, two hundred seventy-two million, eight hundred three thousand, one hundred twenty-five".