420336525 has 48 divisors (see below), whose sum is σ = 836057600. Its totient is φ = 182036160.

The previous prime is 420336461. The next prime is 420336547. The reversal of 420336525 is 525633024.

It is not a de Polignac number, because 420336525 - 2⁶ = 420336461 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 420336492 and 420336501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11095 + ... + 31044.

Almost surely, 2^420336525 is an apocalyptic number.

It is an amenable number.

420336525 is a deficient number, since it is larger than the sum of its proper divisors (415721075).

420336525 is a wasteful number, since it uses less digits than its factorization.

420336525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42178 (or 42173 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 420336525 is about 20502.1102572394. The cubic root of 420336525 is about 749.0872006249.

Adding to 420336525 its reverse (525633024), we get a palindrome (945969549).

The spelling of 420336525 in words is "four hundred twenty million, three hundred thirty-six thousand, five hundred twenty-five".