404013525 has 24 divisors (see below), whose sum is σ = 669105984. Its totient is φ = 215107200.

The previous prime is 404013503. The next prime is 404013527. The reversal of 404013525 is 525310404.

404013525 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 404013525 - 2¹⁰ = 404012501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404013495 and 404013504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404013527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43057 + ... + 51593.

It is an arithmetic number, because the mean of its divisors is an integer number (27879416).

Almost surely, 2^404013525 is an apocalyptic number.

It is an amenable number.

404013525 is a deficient number, since it is larger than the sum of its proper divisors (265092459).

404013525 is a wasteful number, since it uses less digits than its factorization.

404013525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9181 (or 9176 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 404013525 is about 20100.0876863759. The cubic root of 404013525 is about 739.2624285948.

Adding to 404013525 its reverse (525310404), we get a palindrome (929323929).

The spelling of 404013525 in words is "four hundred four million, thirteen thousand, five hundred twenty-five".