25042573 has 4 divisors (see below), whose sum is σ = 25906140. Its totient is φ = 24179008.

The previous prime is 25042571. The next prime is 25042603. The reversal of 25042573 is 37524052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7628644 + 17413929 = 2762^2 + 4173^2 .

It is a cyclic number.

It is not a de Polignac number, because 25042573 - 2¹ = 25042571 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 (25042571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431740 + ... + 431797.

It is an arithmetic number, because the mean of its divisors is an integer number (6476535).

Almost surely, 2^25042573 is an apocalyptic number.

It is an amenable number.

25042573 is a deficient number, since it is larger than the sum of its proper divisors (863567).

25042573 is an equidigital number, since it uses as much as digits as its factorization.

25042573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863566.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 25042573 is about 5004.2554890813. The cubic root of 25042573 is about 292.5676586369.

The spelling of 25042573 in words is "twenty-five million, forty-two thousand, five hundred seventy-three".