420125515353125 has 24 divisors (see below), whose sum is σ = 525126850121160. Its totient is φ = 336098129920000.

The previous prime is 420125515353083. The next prime is 420125515353151. The reversal of 420125515353125 is 521353515521024.

It can be written as a sum of positive squares in 12 ways, for example, as 358990286867521 + 61135228485604 = 18947039^2 + 7818902^2 .

It is not a de Polignac number, because 420125515353125 - 2⁸ = 420125515352869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 576438941 + ... + 577167309.

It is an arithmetic number, because the mean of its divisors is an integer number (21880285421715).

Almost surely, 2^{420125515353125} is an apocalyptic number.

It is an amenable number.

420125515353125 is a deficient number, since it is larger than the sum of its proper divisors (105001334768035).

420125515353125 is an frugal number, since it uses more digits than its factorization.

420125515353125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912971 (or 912951 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 420125515353125 in words is "four hundred twenty trillion, one hundred twenty-five billion, five hundred fifteen million, three hundred fifty-three thousand, one hundred twenty-five".