8240525 has 12 divisors (see below), whose sum is σ = 10312212. Its totient is φ = 6531840.

The previous prime is 8240501. The next prime is 8240537. The reversal of 8240525 is 5250428.

It can be written as a sum of positive squares in 6 ways, for example, as 72361 + 8168164 = 269^2 + 2858^2 .

It is not a de Polignac number, because 8240525 - 2⁸ = 8240269 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 = 8240494 and 8240503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1367 + ... + 4283.

It is an arithmetic number, because the mean of its divisors is an integer number (859351).

Almost surely, 2^8240525 is an apocalyptic number.

It is an amenable number.

8240525 is a deficient number, since it is larger than the sum of its proper divisors (2071687).

8240525 is a wasteful number, since it uses less digits than its factorization.

8240525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040 (or 3035 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 8240525 is about 2870.6314636330. The cubic root of 8240525 is about 201.9846163496.

The spelling of 8240525 in words is "eight million, two hundred forty thousand, five hundred twenty-five".