25009424 has 20 divisors (see below), whose sum is σ = 52861200. Its totient is φ = 11367840.

The previous prime is 25009423. The next prime is 25009427. The reversal of 25009424 is 42490052.

It is a junction number, because it is equal to n+sod(n) for n = 25009393 and 25009402.

It is not an unprimeable number, because it can be changed into a prime (25009421) 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 3 ways as a sum of consecutive naturals, for example, 70874 + ... + 71225.

It is an arithmetic number, because the mean of its divisors is an integer number (2643060).

Almost surely, 2^25009424 is an apocalyptic number.

It is an amenable number.

25009424 is an abundant number, since it is smaller than the sum of its proper divisors (27851776).

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

25009424 is a wasteful number, since it uses less digits than its factorization.

25009424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142118 (or 142112 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25009424 is about 5000.9423112050. The cubic root of 25009424 is about 292.4385104631.

Adding to 25009424 its reverse (42490052), we get a palindrome (67499476).

The spelling of 25009424 in words is "twenty-five million, nine thousand, four hundred twenty-four".