25287069 has 8 divisors (see below), whose sum is σ = 33798240. Its totient is φ = 16816976.

The previous prime is 25287047. The next prime is 25287071. The reversal of 25287069 is 96078252.

It is a happy number.

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 25287069 - 2¹² = 25282973 is a prime.

It is a super-2 number, since 2×25287069² = 1278871717221522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25287079) 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 7 ways as a sum of consecutive naturals, for example, 8802 + ... + 11315.

It is an arithmetic number, because the mean of its divisors is an integer number (4224780).

Almost surely, 2^25287069 is an apocalyptic number.

It is an amenable number.

25287069 is a deficient number, since it is larger than the sum of its proper divisors (8511171).

25287069 is a wasteful number, since it uses less digits than its factorization.

25287069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20539.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 25287069 is about 5028.6249611599. The cubic root of 25287069 is about 293.5167102637.

The spelling of 25287069 in words is "twenty-five million, two hundred eighty-seven thousand, sixty-nine".