25633975 has 12 divisors (see below), whose sum is σ = 31933224. Its totient is φ = 20412320.

The previous prime is 25633973. The next prime is 25633997. The reversal of 25633975 is 57933652.

It is not a de Polignac number, because 25633975 - 2¹ = 25633973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25633973) 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 11 ways as a sum of consecutive naturals, for example, 3417 + ... + 7933.

It is an arithmetic number, because the mean of its divisors is an integer number (2661102).

Almost surely, 2^25633975 is an apocalyptic number.

25633975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25633975 is a deficient number, since it is larger than the sum of its proper divisors (6299249).

25633975 is a wasteful number, since it uses less digits than its factorization.

25633975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754 (or 4749 counting only the distinct ones).

The product of its digits is 170100, while the sum is 40.

The square root of 25633975 is about 5063.0005925340. Note that the first 3 decimals coincide. The cubic root of 25633975 is about 294.8528424330.

The spelling of 25633975 in words is "twenty-five million, six hundred thirty-three thousand, nine hundred seventy-five".