25532481 has 8 divisors (see below), whose sum is σ = 36662080. Its totient is φ = 15712272.

The previous prime is 25532471. The next prime is 25532509. The reversal of 25532481 is 18423552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25532481 - 2¹⁵ = 25499713 is a prime.

It is a super-2 number, since 2×25532481² = 1303815172030722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25532401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327301 + ... + 327378.

It is an arithmetic number, because the mean of its divisors is an integer number (4582760).

Almost surely, 2^25532481 is an apocalyptic number.

It is an amenable number.

25532481 is a deficient number, since it is larger than the sum of its proper divisors (11129599).

25532481 is a wasteful number, since it uses less digits than its factorization.

25532481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654695.

The product of its digits is 9600, while the sum is 30.

The square root of 25532481 is about 5052.9675439290. The cubic root of 25532481 is about 294.4631853847.

The spelling of 25532481 in words is "twenty-five million, five hundred thirty-two thousand, four hundred eighty-one".