25245273 has 4 divisors (see below), whose sum is σ = 33660368. Its totient is φ = 16830180.

The previous prime is 25245271. The next prime is 25245287. The reversal of 25245273 is 37254252.

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 25245273 - 2¹ = 25245271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25245273.

It is not an unprimeable number, because it can be changed into a prime (25245271) 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, 4207543 + ... + 4207548.

It is an arithmetic number, because the mean of its divisors is an integer number (8415092).

Almost surely, 2^25245273 is an apocalyptic number.

It is an amenable number.

25245273 is a deficient number, since it is larger than the sum of its proper divisors (8415095).

25245273 is an equidigital number, since it uses as much as digits as its factorization.

25245273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8415094.

The product of its digits is 16800, while the sum is 30.

The square root of 25245273 is about 5024.4674344651. The cubic root of 25245273 is about 293.3549070164.

The spelling of 25245273 in words is "twenty-five million, two hundred forty-five thousand, two hundred seventy-three".