8425725 has 48 divisors (see below), whose sum is σ = 17379840. Its totient is φ = 3499200.

The previous prime is 8425717. The next prime is 8425741. The reversal of 8425725 is 5275248.

It is not a de Polignac number, because 8425725 - 2³ = 8425717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a d-powerful number, because it can be written as 8⁵ + 4⁴ + 2²² + 5⁴ + 7³ + 2²² + 5⁵ .

8425725 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5046 + ... + 6504.

It is an arithmetic number, because the mean of its divisors is an integer number (362080).

Almost surely, 2^8425725 is an apocalyptic number.

It is an amenable number.

8425725 is an abundant number, since it is smaller than the sum of its proper divisors (8954115).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8425725 is a wasteful number, since it uses less digits than its factorization.

8425725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1485 counting only the distinct ones).

The product of its digits is 22400, while the sum is 33.

The square root of 8425725 is about 2902.7099407278. The cubic root of 8425725 is about 203.4865741414.

It can be divided in two parts, 84 and 25725, that multiplied together give a square (2160900 = 1470²).

The spelling of 8425725 in words is "eight million, four hundred twenty-five thousand, seven hundred twenty-five".