25701223 has 4 divisors (see below), whose sum is σ = 25757920. Its totient is φ = 25644528.

The previous prime is 25701173. The next prime is 25701227. The reversal of 25701223 is 32210752.

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-25701223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25701194 and 25701203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25701227) 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, 27663 + ... + 28576.

It is an arithmetic number, because the mean of its divisors is an integer number (6439480).

Almost surely, 2^25701223 is an apocalyptic number.

25701223 is a deficient number, since it is larger than the sum of its proper divisors (56697).

25701223 is an equidigital number, since it uses as much as digits as its factorization.

25701223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56696.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 25701223 is about 5069.6373637569. The cubic root of 25701223 is about 295.1104556210.

Adding to 25701223 its reverse (32210752), we get a palindrome (57911975).

The spelling of 25701223 in words is "twenty-five million, seven hundred one thousand, two hundred twenty-three".