25478325 has 36 divisors (see below), whose sum is σ = 48326148. Its totient is φ = 12787200.

The previous prime is 25478303. The next prime is 25478329. The reversal of 25478325 is 52387452.

It can be written as a sum of positive squares in 6 ways, for example, as 1887876 + 23590449 = 1374^2 + 4857^2 .

It is not a de Polignac number, because 25478325 - 2⁵ = 25478293 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 25478325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25478329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 495 + ... + 7155.

It is an arithmetic number, because the mean of its divisors is an integer number (1342393).

Almost surely, 2^25478325 is an apocalyptic number.

25478325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25478325 is a deficient number, since it is larger than the sum of its proper divisors (22847823).

25478325 is a wasteful number, since it uses less digits than its factorization.

25478325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6694 (or 6686 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 25478325 is about 5047.6058681319. The cubic root of 25478325 is about 294.2548463622.

The spelling of 25478325 in words is "twenty-five million, four hundred seventy-eight thousand, three hundred twenty-five".