424040525 has 6 divisors (see below), whose sum is σ = 525810282. Its totient is φ = 339232400.

The previous prime is 424040497. The next prime is 424040531. The reversal of 424040525 is 525040424.

424040525 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 8655364 + 415385161 = 2942^2 + 20381^2 .

It is not a de Polignac number, because 424040525 - 2⁸ = 424040269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 424040494 and 424040503.

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 5 ways as a sum of consecutive naturals, for example, 8480786 + ... + 8480835.

It is an arithmetic number, because the mean of its divisors is an integer number (87635047).

Almost surely, 2^424040525 is an apocalyptic number.

It is an amenable number.

424040525 is a deficient number, since it is larger than the sum of its proper divisors (101769757).

424040525 is a wasteful number, since it uses less digits than its factorization.

424040525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16961631 (or 16961626 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 424040525 is about 20592.2442924515. The cubic root of 424040525 is about 751.2810845912.

Adding to 424040525 its reverse (525040424), we get a palindrome (949080949).

The spelling of 424040525 in words is "four hundred twenty-four million, forty thousand, five hundred twenty-five".