420574563 has 6 divisors (see below), whose sum is σ = 607496604. Its totient is φ = 280383036.

The previous prime is 420574549. The next prime is 420574571. The reversal of 420574563 is 365475024.

420574563 is a `hidden beast` number, since 4 + 20 + 5 + 74 + 563 = 666.

It is not a de Polignac number, because 420574563 - 2⁶ = 420574499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420574513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23365245 + ... + 23365262.

It is an arithmetic number, because the mean of its divisors is an integer number (101249434).

Almost surely, 2^420574563 is an apocalyptic number.

420574563 is a deficient number, since it is larger than the sum of its proper divisors (186922041).

420574563 is a wasteful number, since it uses less digits than its factorization.

420574563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46730513 (or 46730510 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 420574563 is about 20507.9146428885. The cubic root of 420574563 is about 749.2285774818.

The spelling of 420574563 in words is "four hundred twenty million, five hundred seventy-four thousand, five hundred sixty-three".