25445430 has 48 divisors (see below), whose sum is σ = 70053984. Its totient is φ = 6385920.

The previous prime is 25445417. The next prime is 25445437. The reversal of 25445430 is 3454452.

It is a junction number, because it is equal to n+sod(n) for n = 25445394 and 25445403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25445437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6786 + ... + 9845.

It is an arithmetic number, because the mean of its divisors is an integer number (1459458).

Almost surely, 2^25445430 is an apocalyptic number.

25445430 is an abundant number, since it is smaller than the sum of its proper divisors (44608554).

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

25445430 is a wasteful number, since it uses less digits than its factorization.

25445430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16661 (or 16658 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 25445430 is about 5044.3463402110. The cubic root of 25445430 is about 294.1281545972.

Adding to 25445430 its reverse (3454452), we get a palindrome (28899882).

The spelling of 25445430 in words is "twenty-five million, four hundred forty-five thousand, four hundred thirty".