25245042 has 16 divisors (see below), whose sum is σ = 51664800. Its totient is φ = 8219232.

The previous prime is 25245019. The next prime is 25245047. The reversal of 25245042 is 24054252.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25245047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48667 + ... + 49182.

It is an arithmetic number, because the mean of its divisors is an integer number (3229050).

Almost surely, 2^25245042 is an apocalyptic number.

25245042 is an abundant number, since it is smaller than the sum of its proper divisors (26419758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25245042 is a wasteful number, since it uses less digits than its factorization.

25245042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97897.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 25245042 is about 5024.4444469016. Note that the first 5 decimals coincide. The cubic root of 25245042 is about 293.3540122589.

Adding to 25245042 its reverse (24054252), we get a palindrome (49299294).

The spelling of 25245042 in words is "twenty-five million, two hundred forty-five thousand, forty-two".