25532775 has 36 divisors (see below), whose sum is σ = 46983352. Its totient is φ = 13245120.

The previous prime is 25532761. The next prime is 25532779. The reversal of 25532775 is 57723552.

It is a happy number.

It is not a de Polignac number, because 25532775 - 2⁵ = 25532743 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 (25532779) 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 35 ways as a sum of consecutive naturals, for example, 6792 + ... + 9858.

Almost surely, 2^25532775 is an apocalyptic number.

25532775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25532775 is a deficient number, since it is larger than the sum of its proper divisors (21450577).

25532775 is a wasteful number, since it uses less digits than its factorization.

25532775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120 (or 3112 counting only the distinct ones).

The product of its digits is 73500, while the sum is 36.

The square root of 25532775 is about 5052.9966356609. The cubic root of 25532775 is about 294.4643156031.

The spelling of 25532775 in words is "twenty-five million, five hundred thirty-two thousand, seven hundred seventy-five".