424135525 has 24 divisors (see below), whose sum is σ = 598693824. Its totient is φ = 295046400.

The previous prime is 424135513. The next prime is 424135559. The reversal of 424135525 is 525531424.

It is not a de Polignac number, because 424135525 - 2⁵ = 424135493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27204 + ... + 39853.

It is an arithmetic number, because the mean of its divisors is an integer number (24945576).

Almost surely, 2^424135525 is an apocalyptic number.

It is an amenable number.

424135525 is a deficient number, since it is larger than the sum of its proper divisors (174558299).

424135525 is a wasteful number, since it uses less digits than its factorization.

424135525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67101 (or 67096 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 424135525 is about 20594.5508569621. The cubic root of 424135525 is about 751.3371848690.

Adding to 424135525 its reverse (525531424), we get a palindrome (949666949).

The spelling of 424135525 in words is "four hundred twenty-four million, one hundred thirty-five thousand, five hundred twenty-five".