8212525 has 12 divisors (see below), whose sum is σ = 10337632. Its totient is φ = 6470640.

The previous prime is 8212517. The next prime is 8212549. The reversal of 8212525 is 5252128.

It is not a de Polignac number, because 8212525 - 2³ = 8212517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8212525.

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, 777 + ... + 4126.

Almost surely, 2^8212525 is an apocalyptic number.

It is an amenable number.

8212525 is a deficient number, since it is larger than the sum of its proper divisors (2125107).

8212525 is a wasteful number, since it uses less digits than its factorization.

8212525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4980 (or 4975 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 8212525 is about 2865.7503380441. The cubic root of 8212525 is about 201.7555861623.

The spelling of 8212525 in words is "eight million, two hundred twelve thousand, five hundred twenty-five".