25040530 has 16 divisors (see below), whose sum is σ = 45198720. Its totient is φ = 9988272.

The previous prime is 25040503. The next prime is 25040557. The reversal of 25040530 is 3504052.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25040503) and next prime (25040557).

It is a junction number, because it is equal to n+sod(n) for n = 25040498 and 25040507.

It is an unprimeable number.

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, 487 + ... + 7093.

It is an arithmetic number, because the mean of its divisors is an integer number (2824920).

Almost surely, 2^25040530 is an apocalyptic number.

25040530 is a deficient number, since it is larger than the sum of its proper divisors (20158190).

25040530 is a wasteful number, since it uses less digits than its factorization.

25040530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 25040530 is about 5004.0513586493. The cubic root of 25040530 is about 292.5597024260.

Adding to 25040530 its reverse (3504052), we get a palindrome (28544582).

The spelling of 25040530 in words is "twenty-five million, forty thousand, five hundred thirty".