25223471 has 16 divisors (see below), whose sum is σ = 31477824. Its totient is φ = 19678464.

The previous prime is 25223467. The next prime is 25223477. The reversal of 25223471 is 17432252.

It is not a de Polignac number, because 25223471 - 2² = 25223467 is a prime.

It is a super-3 number, since 3×25223471³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25223471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25223477) 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 15 ways as a sum of consecutive naturals, for example, 4745 + ... + 8541.

It is an arithmetic number, because the mean of its divisors is an integer number (1967364).

Almost surely, 2^25223471 is an apocalyptic number.

25223471 is a deficient number, since it is larger than the sum of its proper divisors (6254353).

25223471 is a wasteful number, since it uses less digits than its factorization.

25223471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890.

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

The square root of 25223471 is about 5022.2973826726. The cubic root of 25223471 is about 293.2704348897.

The spelling of 25223471 in words is "twenty-five million, two hundred twenty-three thousand, four hundred seventy-one".