420523535 has 8 divisors (see below), whose sum is σ = 507650976. Its totient is φ = 334403680.

The previous prime is 420523507. The next prime is 420523541. The reversal of 420523535 is 535325024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420523535 - 2¹⁴ = 420507151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420523498 and 420523507.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 250976 + ... + 252645.

It is an arithmetic number, because the mean of its divisors is an integer number (63456372).

Almost surely, 2^420523535 is an apocalyptic number.

420523535 is a deficient number, since it is larger than the sum of its proper divisors (87127441).

420523535 is a wasteful number, since it uses less digits than its factorization.

420523535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503793.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 420523535 is about 20506.6705001080. The cubic root of 420523535 is about 749.1982751402.

Adding to 420523535 its reverse (535325024), we get a palindrome (955848559).

The spelling of 420523535 in words is "four hundred twenty million, five hundred twenty-three thousand, five hundred thirty-five".