420525255345 has 96 divisors (see below), whose sum is σ = 754912849152. Its totient is φ = 198657792000.

The previous prime is 420525255331. The next prime is 420525255347. The reversal of 420525255345 is 543552525024.

It is not a de Polignac number, because 420525255345 - 2⁶ = 420525255281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420525255297 and 420525255306.

It is not an unprimeable number, because it can be changed into a prime (420525255347) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 19984980 + ... + 20006010.

It is an arithmetic number, because the mean of its divisors is an integer number (7863675512).

Almost surely, 2^420525255345 is an apocalyptic number.

It is an amenable number.

420525255345 is a deficient number, since it is larger than the sum of its proper divisors (334387593807).

420525255345 is a wasteful number, since it uses less digits than its factorization.

420525255345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21195 (or 21154 counting only the distinct ones).

The product of its (nonzero) digits is 1200000, while the sum is 42.

The spelling of 420525255345 in words is "four hundred twenty billion, five hundred twenty-five million, two hundred fifty-five thousand, three hundred forty-five".