25451525 has 12 divisors (see below), whose sum is σ = 34429344. Its totient is φ = 18510000.

The previous prime is 25451519. The next prime is 25451537. The reversal of 25451525 is 52515452.

It is not a de Polignac number, because 25451525 - 2⁸ = 25451269 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46001 + ... + 46550.

It is an arithmetic number, because the mean of its divisors is an integer number (2869112).

Almost surely, 2^25451525 is an apocalyptic number.

25451525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25451525 is a deficient number, since it is larger than the sum of its proper divisors (8977819).

25451525 is a wasteful number, since it uses less digits than its factorization.

25451525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92572 (or 92567 counting only the distinct ones).

The product of its digits is 10000, while the sum is 29.

The square root of 25451525 is about 5044.9504457428. The cubic root of 25451525 is about 294.1516371110.

Adding to 25451525 its reverse (52515452), we get a palindrome (77966977).

The spelling of 25451525 in words is "twenty-five million, four hundred fifty-one thousand, five hundred twenty-five".