3521825 has 12 divisors (see below), whose sum is σ = 4397040. Its totient is φ = 2798160.

The previous prime is 3521803. The next prime is 3521831. The reversal of 3521825 is 5281253.

It is not a de Polignac number, because 3521825 - 2¹⁰ = 3520801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3521794 and 3521803.

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, 4082 + ... + 4868.

It is an arithmetic number, because the mean of its divisors is an integer number (366420).

Almost surely, 2^3521825 is an apocalyptic number.

It is an amenable number.

3521825 is a deficient number, since it is larger than the sum of its proper divisors (875215).

3521825 is a wasteful number, since it uses less digits than its factorization.

3521825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 971 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 3521825 is about 1876.6526050391. The cubic root of 3521825 is about 152.1443832378.

The spelling of 3521825 in words is "three million, five hundred twenty-one thousand, eight hundred twenty-five".