25270427 has 12 divisors (see below), whose sum is σ = 31658256. Its totient is φ = 19993680.

The previous prime is 25270423. The next prime is 25270463. The reversal of 25270427 is 72407252.

It is not a de Polignac number, because 25270427 - 2² = 25270423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25270427.

It is not an unprimeable number, because it can be changed into a prime (25270423) 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 11 ways as a sum of consecutive naturals, for example, 19199 + ... + 20472.

It is an arithmetic number, because the mean of its divisors is an integer number (2638188).

Almost surely, 2^25270427 is an apocalyptic number.

25270427 is a deficient number, since it is larger than the sum of its proper divisors (6387829).

25270427 is a wasteful number, since it uses less digits than its factorization.

25270427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39698 (or 39691 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 25270427 is about 5026.9699621144. The cubic root of 25270427 is about 293.4523061070.

Adding to 25270427 its reverse (72407252), we get a palindrome (97677679).

The spelling of 25270427 in words is "twenty-five million, two hundred seventy thousand, four hundred twenty-seven".