420559425 has 96 divisors (see below), whose sum is σ = 907858560. Its totient is φ = 188179200.

The previous prime is 420559417. The next prime is 420559453. The reversal of 420559425 is 524955024.

420559425 is a `hidden beast` number, since 42 + 0 + 5 + 594 + 25 = 666.

It is not a de Polignac number, because 420559425 - 2³ = 420559417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420559425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 94347 + ... + 98703.

It is an arithmetic number, because the mean of its divisors is an integer number (9456860).

Almost surely, 2^420559425 is an apocalyptic number.

420559425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420559425 is an abundant number, since it is smaller than the sum of its proper divisors (487299135).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420559425 is a wasteful number, since it uses less digits than its factorization.

420559425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 420559425 is about 20507.5455625484. The cubic root of 420559425 is about 749.2195882249.

The spelling of 420559425 in words is "four hundred twenty million, five hundred fifty-nine thousand, four hundred twenty-five".