25408238 has 8 divisors (see below), whose sum is σ = 39769488. Its totient is φ = 12151744.

The previous prime is 25408231. The next prime is 25408259. The reversal of 25408238 is 83280452.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25408231) 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, 276131 + ... + 276222.

It is an arithmetic number, because the mean of its divisors is an integer number (4971186).

Almost surely, 2^25408238 is an apocalyptic number.

25408238 is a deficient number, since it is larger than the sum of its proper divisors (14361250).

25408238 is a wasteful number, since it uses less digits than its factorization.

25408238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552378.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 25408238 is about 5040.6584887294. The cubic root of 25408238 is about 293.9847817874.

The spelling of 25408238 in words is "twenty-five million, four hundred eight thousand, two hundred thirty-eight".