420425955 has 12 divisors (see below), whose sum is σ = 728738400. Its totient is φ = 224227152.

The previous prime is 420425923. The next prime is 420425981. The reversal of 420425955 is 559524024.

420425955 is a `hidden beast` number, since 4 + 20 + 42 + 595 + 5 = 666.

It is not a de Polignac number, because 420425955 - 2⁵ = 420425923 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4671355 + ... + 4671444.

It is an arithmetic number, because the mean of its divisors is an integer number (60728200).

Almost surely, 2^420425955 is an apocalyptic number.

420425955 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

420425955 is a deficient number, since it is larger than the sum of its proper divisors (308312445).

420425955 is a wasteful number, since it uses less digits than its factorization.

420425955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9342810 (or 9342807 counting only the distinct ones).

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

The square root of 420425955 is about 20504.2911362476. The cubic root of 420425955 is about 749.1403216473.

Adding to 420425955 its reverse (559524024), we get a palindrome (979949979).

The spelling of 420425955 in words is "four hundred twenty million, four hundred twenty-five thousand, nine hundred fifty-five".