25238427 has 4 divisors (see below), whose sum is σ = 33651240. Its totient is φ = 16825616.

The previous prime is 25238413. The next prime is 25238443. The reversal of 25238427 is 72483252.

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

It is a cyclic number.

It is not a de Polignac number, because 25238427 - 2¹² = 25234331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25238407) 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, 4206402 + ... + 4206407.

It is an arithmetic number, because the mean of its divisors is an integer number (8412810).

Almost surely, 2^25238427 is an apocalyptic number.

25238427 is a deficient number, since it is larger than the sum of its proper divisors (8412813).

25238427 is an equidigital number, since it uses as much as digits as its factorization.

25238427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8412812.

The product of its digits is 26880, while the sum is 33.

The square root of 25238427 is about 5023.7861220398. The cubic root of 25238427 is about 293.3283873420.

It can be divided in two parts, 2523 and 8427, that multiplied together give a square (21261321 = 4611²).

The spelling of 25238427 in words is "twenty-five million, two hundred thirty-eight thousand, four hundred twenty-seven".