25030920 has 32 divisors (see below), whose sum is σ = 75093120. Its totient is φ = 6674880.

The previous prime is 25030909. The next prime is 25030921. The reversal of 25030920 is 2903052.

It is not an unprimeable number, because it can be changed into a prime (25030921) 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 7 ways as a sum of consecutive naturals, for example, 104176 + ... + 104415.

It is an arithmetic number, because the mean of its divisors is an integer number (2346660).

Almost surely, 2^25030920 is an apocalyptic number.

25030920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25030920 is an abundant number, since it is smaller than the sum of its proper divisors (50062200).

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

25030920 is a wasteful number, since it uses less digits than its factorization.

25030920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208605 (or 208601 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 25030920 is about 5003.0910445444. The cubic root of 25030920 is about 292.5222716623.

Adding to 25030920 its reverse (2903052), we get a palindrome (27933972).

The spelling of 25030920 in words is "twenty-five million, thirty thousand, nine hundred twenty".