25355242 has 16 divisors (see below), whose sum is σ = 41904864. Its totient is φ = 11410000.

The previous prime is 25355233. The next prime is 25355243. The reversal of 25355242 is 24255352.

It is a self number, because there is not a number n which added to its sum of digits gives 25355242.

It is not an unprimeable number, because it can be changed into a prime (25355243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3484 + ... + 7927.

It is an arithmetic number, because the mean of its divisors is an integer number (2619054).

Almost surely, 2^25355242 is an apocalyptic number.

25355242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25355242 is a deficient number, since it is larger than the sum of its proper divisors (16549622).

25355242 is a wasteful number, since it uses less digits than its factorization.

25355242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11525.

The product of its digits is 12000, while the sum is 28.

The square root of 25355242 is about 5035.3988918456. The cubic root of 25355242 is about 293.7802436342.

It can be divided in two parts, 2535 and 5242, that added together give a palindrome (7777).

The spelling of 25355242 in words is "twenty-five million, three hundred fifty-five thousand, two hundred forty-two".