25254813 has 4 divisors (see below), whose sum is σ = 33673088. Its totient is φ = 16836540.

The previous prime is 25254797. The next prime is 25254821. The reversal of 25254813 is 31845252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25254813 - 2⁴ = 25254797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25254833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4209133 + ... + 4209138.

It is an arithmetic number, because the mean of its divisors is an integer number (8418272).

Almost surely, 2^25254813 is an apocalyptic number.

It is an amenable number.

25254813 is a deficient number, since it is larger than the sum of its proper divisors (8418275).

25254813 is an equidigital number, since it uses as much as digits as its factorization.

25254813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418274.

The product of its digits is 9600, while the sum is 30.

The square root of 25254813 is about 5025.4166991405. The cubic root of 25254813 is about 293.3918545717.

The spelling of 25254813 in words is "twenty-five million, two hundred fifty-four thousand, eight hundred thirteen".