25100242 has 8 divisors (see below), whose sum is σ = 37903500. Its totient is φ = 12465744.

The previous prime is 25100239. The next prime is 25100249. The reversal of 25100242 is 24200152.

It can be written as a sum of positive squares in 2 ways, for example, as 19722481 + 5377761 = 4441^2 + 2319^2 .

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

It is not an unprimeable number, because it can be changed into a prime (25100249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41817 + ... + 42412.

Almost surely, 2^25100242 is an apocalyptic number.

25100242 is a deficient number, since it is larger than the sum of its proper divisors (12803258).

25100242 is a wasteful number, since it uses less digits than its factorization.

25100242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84380.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 25100242 is about 5010.0141716366. The cubic root of 25100242 is about 292.7920651522.

Adding to 25100242 its reverse (24200152), we get a palindrome (49300394).

The spelling of 25100242 in words is "twenty-five million, one hundred thousand, two hundred forty-two".