420523263 has 6 divisors (see below), whose sum is σ = 607422504. Its totient is φ = 280348836.

The previous prime is 420523223. The next prime is 420523331. The reversal of 420523263 is 362325024.

420523263 is a `hidden beast` number, since 420 + 5 + 232 + 6 + 3 = 666.

It is not a de Polignac number, because 420523263 - 2¹³ = 420515071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420523223) 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, 23362395 + ... + 23362412.

It is an arithmetic number, because the mean of its divisors is an integer number (101237084).

Almost surely, 2^420523263 is an apocalyptic number.

420523263 is a deficient number, since it is larger than the sum of its proper divisors (186899241).

420523263 is a wasteful number, since it uses less digits than its factorization.

420523263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46724813 (or 46724810 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 420523263 is about 20506.6638681186. The cubic root of 420523263 is about 749.1981136098.

Adding to 420523263 its reverse (362325024), we get a palindrome (782848287).

The spelling of 420523263 in words is "four hundred twenty million, five hundred twenty-three thousand, two hundred sixty-three".