25320430 has 16 divisors (see below), whose sum is σ = 45639360. Its totient is φ = 10114272.

The previous prime is 25320413. The next prime is 25320433. The reversal of 25320430 is 3402352.

It is a super-2 number, since 2×25320430² = 1282248350769800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25320398 and 25320407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25320433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9172 + ... + 11608.

It is an arithmetic number, because the mean of its divisors is an integer number (2852460).

Almost surely, 2^25320430 is an apocalyptic number.

25320430 is a deficient number, since it is larger than the sum of its proper divisors (20318930).

25320430 is a wasteful number, since it uses less digits than its factorization.

25320430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 25320430 is about 5031.9409773963. The cubic root of 25320430 is about 293.6457315163.

Adding to 25320430 its reverse (3402352), we get a palindrome (28722782).

The spelling of 25320430 in words is "twenty-five million, three hundred twenty thousand, four hundred thirty".