420252611 has 4 divisors (see below), whose sum is σ = 420305400. Its totient is φ = 420199824.

The previous prime is 420252593. The next prime is 420252683. The reversal of 420252611 is 116252024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420252611 is a prime.

It is a super-2 number, since 2×420252611² = 353224514104634642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420252691) 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 3 ways as a sum of consecutive naturals, for example, 11741 + ... + 31278.

It is an arithmetic number, because the mean of its divisors is an integer number (105076350).

Almost surely, 2^420252611 is an apocalyptic number.

420252611 is a deficient number, since it is larger than the sum of its proper divisors (52789).

420252611 is an equidigital number, since it uses as much as digits as its factorization.

420252611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52788.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 420252611 is about 20500.0636828279. The cubic root of 420252611 is about 749.0373492296.

The spelling of 420252611 in words is "four hundred twenty million, two hundred fifty-two thousand, six hundred eleven".