25239793 has 4 divisors (see below), whose sum is σ = 25463268. Its totient is φ = 25016320.

The previous prime is 25239761. The next prime is 25239821. The reversal of 25239793 is 39793252.

It is a happy number.

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 1151329 + 24088464 = 1073^2 + 4908^2 .

It is a cyclic number.

It is not a de Polignac number, because 25239793 - 2⁵ = 25239761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25239703) 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, 111568 + ... + 111793.

It is an arithmetic number, because the mean of its divisors is an integer number (6365817).

Almost surely, 2^25239793 is an apocalyptic number.

It is an amenable number.

25239793 is a deficient number, since it is larger than the sum of its proper divisors (223475).

25239793 is a wasteful number, since it uses less digits than its factorization.

25239793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223474.

The product of its digits is 102060, while the sum is 40.

The square root of 25239793 is about 5023.9220734402. The cubic root of 25239793 is about 293.3336792638. Note that the first 3 decimals are identical.

The spelling of 25239793 in words is "twenty-five million, two hundred thirty-nine thousand, seven hundred ninety-three".