25397243 has 8 divisors (see below), whose sum is σ = 27656400. Its totient is φ = 23230368.

The previous prime is 25397231. The next prime is 25397257. The reversal of 25397243 is 34279352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25397243 - 2⁶ = 25397179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25397263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22496 + ... + 23597.

It is an arithmetic number, because the mean of its divisors is an integer number (3457050).

Almost surely, 2^25397243 is an apocalyptic number.

25397243 is a deficient number, since it is larger than the sum of its proper divisors (2259157).

25397243 is a wasteful number, since it uses less digits than its factorization.

25397243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46141.

The product of its digits is 45360, while the sum is 35.

The square root of 25397243 is about 5039.5677393999. The cubic root of 25397243 is about 293.9423699650.

The spelling of 25397243 in words is "twenty-five million, three hundred ninety-seven thousand, two hundred forty-three".