420875051 has 8 divisors (see below), whose sum is σ = 431706000. Its totient is φ = 410171040.

The previous prime is 420875047. The next prime is 420875071. The reversal of 420875051 is 150578024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420875051 - 2² = 420875047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420874999 and 420875017.

It is not an unprimeable number, because it can be changed into a prime (420875071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25001 + ... + 38298.

It is an arithmetic number, because the mean of its divisors is an integer number (53963250).

Almost surely, 2^420875051 is an apocalyptic number.

420875051 is a deficient number, since it is larger than the sum of its proper divisors (10830949).

420875051 is a wasteful number, since it uses less digits than its factorization.

420875051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63469.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 420875051 is about 20515.2394819071. The cubic root of 420875051 is about 749.4069688386.

The spelling of 420875051 in words is "four hundred twenty million, eight hundred seventy-five thousand, fifty-one".