25243355 has 4 divisors (see below), whose sum is σ = 30292032. Its totient is φ = 20194680.

The previous prime is 25243319. The next prime is 25243367. The reversal of 25243355 is 55334252.

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

It is not a de Polignac number, because 25243355 - 2⁶ = 25243291 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2524331 + ... + 2524340.

It is an arithmetic number, because the mean of its divisors is an integer number (7573008).

Almost surely, 2^25243355 is an apocalyptic number.

25243355 is a deficient number, since it is larger than the sum of its proper divisors (5048677).

25243355 is an equidigital number, since it uses as much as digits as its factorization.

25243355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048676.

The product of its digits is 18000, while the sum is 29.

The square root of 25243355 is about 5024.2765648400. The cubic root of 25243355 is about 293.3474776524.

It can be divided in two parts, 252433 and 55, that multiplied together give a triangular number (13883815 = T₅₂₆₉).

The spelling of 25243355 in words is "twenty-five million, two hundred forty-three thousand, three hundred fifty-five".