420562556 has 6 divisors (see below), whose sum is σ = 735984480. Its totient is φ = 210281276.

The previous prime is 420562529. The next prime is 420562559. The reversal of 420562556 is 655265024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420562559) 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 as a sum of consecutive naturals, namely, 52570316 + ... + 52570323.

It is an arithmetic number, because the mean of its divisors is an integer number (122664080).

Almost surely, 2^420562556 is an apocalyptic number.

It is an amenable number.

420562556 is a deficient number, since it is larger than the sum of its proper divisors (315421924).

420562556 is a wasteful number, since it uses less digits than its factorization.

420562556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105140643 (or 105140641 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 420562556 is about 20507.6219001619. The cubic root of 420562556 is about 749.2214474951.

The spelling of 420562556 in words is "four hundred twenty million, five hundred sixty-two thousand, five hundred fifty-six".