420055011 has 8 divisors (see below), whose sum is σ = 622303760. Its totient is φ = 280036656.

The previous prime is 420055007. The next prime is 420055019. The reversal of 420055011 is 110550024.

It is not a de Polignac number, because 420055011 - 2² = 420055007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420055019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7778770 + ... + 7778823.

It is an arithmetic number, because the mean of its divisors is an integer number (77787970).

Almost surely, 2^420055011 is an apocalyptic number.

420055011 is a deficient number, since it is larger than the sum of its proper divisors (202248749).

420055011 is a wasteful number, since it uses less digits than its factorization.

420055011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15557602 (or 15557596 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 420055011 is about 20495.2436189473. The cubic root of 420055011 is about 748.9199333547.

The spelling of 420055011 in words is "four hundred twenty million, fifty-five thousand, eleven".