25254820 has 12 divisors (see below), whose sum is σ = 53035164. Its totient is φ = 10101920.

The previous prime is 25254797. The next prime is 25254821. The reversal of 25254820 is 2845252.

It can be written as a sum of positive squares in 2 ways, for example, as 4260096 + 20994724 = 2064^2 + 4582^2 .

It is not an unprimeable number, because it can be changed into a prime (25254821) 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 3 ways as a sum of consecutive naturals, for example, 631351 + ... + 631390.

It is an arithmetic number, because the mean of its divisors is an integer number (4419597).

Almost surely, 2^25254820 is an apocalyptic number.

25254820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25254820 is an abundant number, since it is smaller than the sum of its proper divisors (27780344).

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

25254820 is a wasteful number, since it uses less digits than its factorization.

25254820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262750 (or 1262748 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 25254820 is about 5025.4173956001. The cubic root of 25254820 is about 293.3918816786.

The spelling of 25254820 in words is "twenty-five million, two hundred fifty-four thousand, eight hundred twenty".