25284967 has 4 divisors (see below), whose sum is σ = 26772336. Its totient is φ = 23797600.

The previous prime is 25284947. The next prime is 25284971. The reversal of 25284967 is 76948252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25284967 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 (25284907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 743659 + ... + 743692.

It is an arithmetic number, because the mean of its divisors is an integer number (6693084).

Almost surely, 2^25284967 is an apocalyptic number.

25284967 is a deficient number, since it is larger than the sum of its proper divisors (1487369).

25284967 is a wasteful number, since it uses less digits than its factorization.

25284967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487368.

The product of its digits is 241920, while the sum is 43.

The square root of 25284967 is about 5028.4159533595. The cubic root of 25284967 is about 293.5085771315.

The spelling of 25284967 in words is "twenty-five million, two hundred eighty-four thousand, nine hundred sixty-seven".