25712127 has 16 divisors (see below), whose sum is σ = 43534080. Its totient is φ = 14692536.

The previous prime is 25712117. The next prime is 25712131. The reversal of 25712127 is 72121752.

It is not a de Polignac number, because 25712127 - 2¹² = 25708031 is a prime.

It is a super-2 number, since 2×25712127² = 1322226949728258, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 25712127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25712117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67833 + ... + 68210.

It is an arithmetic number, because the mean of its divisors is an integer number (2720880).

Almost surely, 2^25712127 is an apocalyptic number.

25712127 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

25712127 is a deficient number, since it is larger than the sum of its proper divisors (17821953).

25712127 is a wasteful number, since it uses less digits than its factorization.

25712127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136059 (or 136053 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 25712127 is about 5070.7126718046. The cubic root of 25712127 is about 295.1521842376.

Adding to 25712127 its reverse (72121752), we get a palindrome (97833879).

The spelling of 25712127 in words is "twenty-five million, seven hundred twelve thousand, one hundred twenty-seven".