8451825 has 12 divisors (see below), whose sum is σ = 13973808. Its totient is φ = 4507600.

The previous prime is 8451811. The next prime is 8451829. The reversal of 8451825 is 5281548.

8451825 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8451825 - 2¹⁶ = 8386289 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8451829) 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, 56271 + ... + 56420.

It is an arithmetic number, because the mean of its divisors is an integer number (1164484).

Almost surely, 2^8451825 is an apocalyptic number.

It is an amenable number.

8451825 is a deficient number, since it is larger than the sum of its proper divisors (5521983).

8451825 is a wasteful number, since it uses less digits than its factorization.

8451825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112704 (or 112699 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 8451825 is about 2907.2022633453. The cubic root of 8451825 is about 203.6964680523.

Subtracting from 8451825 its product of digits (12800), we obtain a square (8439025 = 2905²).

The spelling of 8451825 in words is "eight million, four hundred fifty-one thousand, eight hundred twenty-five".