4013318525 has 12 divisors (see below), whose sum is σ = 4977628212. Its totient is φ = 3209936640.

The previous prime is 4013318521. The next prime is 4013318531. The reversal of 4013318525 is 5258133104.

It can be written as a sum of positive squares in 6 ways, for example, as 308283364 + 3705035161 = 17558^2 + 60869^2 .

It is not a de Polignac number, because 4013318525 - 2² = 4013318521 is a prime.

It is a super-2 number, since 2×4013318525² = 32213451166216351250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4013318491 and 4013318500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013318521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115487 + ... + 146163.

It is an arithmetic number, because the mean of its divisors is an integer number (414802351).

Almost surely, 2^4013318525 is an apocalyptic number.

It is an amenable number.

4013318525 is a deficient number, since it is larger than the sum of its proper divisors (964309687).

4013318525 is a wasteful number, since it uses less digits than its factorization.

4013318525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35920 (or 35915 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 4013318525 is about 63350.7578881263. The cubic root of 4013318525 is about 1589.1609202232.

The spelling of 4013318525 in words is "four billion, thirteen million, three hundred eighteen thousand, five hundred twenty-five".