25053540 has 24 divisors (see below), whose sum is σ = 70150080. Its totient is φ = 6680928.

The previous prime is 25053517. The next prime is 25053559. The reversal of 25053540 is 4535052.

It is a self number, because there is not a number n which added to its sum of digits gives 25053540.

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, 208720 + ... + 208839.

It is an arithmetic number, because the mean of its divisors is an integer number (2922920).

Almost surely, 2^25053540 is an apocalyptic number.

25053540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25053540 is an abundant number, since it is smaller than the sum of its proper divisors (45096540).

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

25053540 is a wasteful number, since it uses less digits than its factorization.

25053540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417571 (or 417569 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 25053540 is about 5005.3511365338. The cubic root of 25053540 is about 292.6103608683.

Adding to 25053540 its reverse (4535052), we get a palindrome (29588592).

The spelling of 25053540 in words is "twenty-five million, fifty-three thousand, five hundred forty".