25515285 has 8 divisors (see below), whose sum is σ = 40824480. Its totient is φ = 13608144.

The previous prime is 25515253. The next prime is 25515289. The reversal of 25515285 is 58251552.

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

It is not a de Polignac number, because 25515285 - 2⁵ = 25515253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25515289) 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, 850495 + ... + 850524.

It is an arithmetic number, because the mean of its divisors is an integer number (5103060).

Almost surely, 2^25515285 is an apocalyptic number.

It is an amenable number.

25515285 is a deficient number, since it is larger than the sum of its proper divisors (15309195).

25515285 is a wasteful number, since it uses less digits than its factorization.

25515285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701027.

The product of its digits is 20000, while the sum is 33.

The square root of 25515285 is about 5051.2656829749. The cubic root of 25515285 is about 294.3970640374.

The spelling of 25515285 in words is "twenty-five million, five hundred fifteen thousand, two hundred eighty-five".