25542525 has 24 divisors (see below), whose sum is σ = 42677824. Its totient is φ = 13478400.

The previous prime is 25542523. The next prime is 25542527. The reversal of 25542525 is 52524552.

It is an interprime number because it is at equal distance from previous prime (25542523) and next prime (25542527).

It is not a de Polignac number, because 25542525 - 2¹ = 25542523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25542492 and 25542501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25542521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5520 + ... + 9030.

Almost surely, 2^25542525 is an apocalyptic number.

25542525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25542525 is a deficient number, since it is larger than the sum of its proper divisors (17135299).

25542525 is a wasteful number, since it uses less digits than its factorization.

25542525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3616 counting only the distinct ones).

The product of its digits is 20000, while the sum is 30.

The square root of 25542525 is about 5053.9613176201. The cubic root of 25542525 is about 294.5017924241.

The spelling of 25542525 in words is "twenty-five million, five hundred forty-two thousand, five hundred twenty-five".