25285507 has 8 divisors (see below), whose sum is σ = 27390384. Its totient is φ = 23203488.

The previous prime is 25285501. The next prime is 25285549. The reversal of 25285507 is 70558252.

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

It is a cyclic number.

It is not a de Polignac number, because 25285507 - 2³ = 25285499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25285501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3373 + ... + 7870.

It is an arithmetic number, because the mean of its divisors is an integer number (3423798).

Almost surely, 2^25285507 is an apocalyptic number.

25285507 is a deficient number, since it is larger than the sum of its proper divisors (2104877).

25285507 is a wasteful number, since it uses less digits than its factorization.

25285507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11429.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 25285507 is about 5028.4696479148. The cubic root of 25285507 is about 293.5106665615.

The spelling of 25285507 in words is "twenty-five million, two hundred eighty-five thousand, five hundred seven".