25228607 has 4 divisors (see below), whose sum is σ = 25240416. Its totient is φ = 25216800.

The previous prime is 25228591. The next prime is 25228657. The reversal of 25228607 is 70682252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25228607 - 2⁴ = 25228591 is a prime.

It is a super-2 number, since 2×25228607² = 1272965222320898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25228657) 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, 1703 + ... + 7304.

It is an arithmetic number, because the mean of its divisors is an integer number (6310104).

Almost surely, 2^25228607 is an apocalyptic number.

25228607 is a deficient number, since it is larger than the sum of its proper divisors (11809).

25228607 is an equidigital number, since it uses as much as digits as its factorization.

25228607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11808.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 25228607 is about 5022.8086764280. The cubic root of 25228607 is about 293.2903387685.

It can be divided in two parts, 25 and 228607, that multiplied together give a palindrome (5715175).

The spelling of 25228607 in words is "twenty-five million, two hundred twenty-eight thousand, six hundred seven".