25142227 has 12 divisors (see below), whose sum is σ = 28230048. Its totient is φ = 22365200.

The previous prime is 25142213. The next prime is 25142239. The reversal of 25142227 is 72224152.

It is a de Polignac number, because none of the positive numbers 2^k-25142227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25142207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3477 + ... + 7897.

It is an arithmetic number, because the mean of its divisors is an integer number (2352504).

Almost surely, 2^25142227 is an apocalyptic number.

25142227 is a deficient number, since it is larger than the sum of its proper divisors (3087821).

25142227 is a wasteful number, since it uses less digits than its factorization.

25142227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490 (or 4479 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 25142227 is about 5014.2025288175. The cubic root of 25142227 is about 292.9552246302.

Adding to 25142227 its reverse (72224152), we get a palindrome (97366379).

The spelling of 25142227 in words is "twenty-five million, one hundred forty-two thousand, two hundred twenty-seven".