25220267 has 8 divisors (see below), whose sum is σ = 26462592. Its totient is φ = 24004800.

The previous prime is 25220263. The next prime is 25220287. The reversal of 25220267 is 76202252.

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 25220267 - 2² = 25220263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25220263) 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, 4778 + ... + 8559.

It is an arithmetic number, because the mean of its divisors is an integer number (3307824).

Almost surely, 2^25220267 is an apocalyptic number.

25220267 is a deficient number, since it is larger than the sum of its proper divisors (1242325).

25220267 is a wasteful number, since it uses less digits than its factorization.

25220267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13429.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 25220267 is about 5021.9783950153. The cubic root of 25220267 is about 293.2580168491.

The spelling of 25220267 in words is "twenty-five million, two hundred twenty thousand, two hundred sixty-seven".